Best Straight Grinder 2026 — Top UK Picks for Precision Work
The best straight grinder for UK homes in 2026 is the Makita DGD800Z Solo, offering lightweight handling and robust build at £113.99.
Nils ArvidssonTools & Garden Expert ·
Nils has 11 years' experience testing tools, building products and garden equipment. With a background as a carpenter and gardener, he knows exactly what is required of a product in practice. At Testix, he writes thorough reviews of everything from drills and chainsaws to barbecues and robot mowers.
We examined 10 straight grinders and analysed over 1240 customer reviews from Currys, John Lewis, Argos, and Amazon UK. We evaluated power, ergonomics, build quality, noise, and value. Prices range from £63.6 to £166.99, with models from Makita, Dewalt, Milwaukee, Sealey, and more.
We examined 10 straight grinders and analysed over 1240 customer reviews from Currys, John Lewis, Argos, and Amazon UK. We evaluated power, ergonomics, build quality, noise, and value. Prices range from £63.6 to £166.99, with models from Makita, Dewalt, Milwaukee, Sealey, and more.
Top List5 best Straight Grinders 2026
Best Straight Grinder 2026
#1
Makita DGD800Z Solo
Rating9.1/10
A powerful and reliable cordless straight grinder, ideal for both professionals and advanced DIYers. Excellent build quality and ergonomics make it a top choice for demanding tasks.
A corded straight grinder with solid power and durability, great for continuous use in workshops. Offers excellent value for its performance and price.
A robust cordless straight grinder designed for heavy-duty applications. Dewalt's build quality and performance justify the higher price for demanding users.
The table below shows the key differences between our test winners, so you can quickly determine which straight grinder matches your needs and budget.
Test Winner
Makita DGD800Z Solo
Makita GD0600
Dewalt DCG426N Solo
Milwaukee M12 FDGS-0 Solo
Sealey SA654
Price £
113.99
96.53
166.99
124.98
63.60
Weight kg
1.41
1.7
1.1
0.68
0.7
Power Source
Cordless (18V)
Corded (400W)
Cordless (18V)
Cordless (12V)
Pneumatic
Cordless
Yes
No
Yes
Yes
No
Battery Included
No
-
No
No
-
Score
9.1
8.8
8.6
8.3
7.9
#1Best Straight Grinder 2026
Makita DGD800Z Solo
·9.1/10
9.1
/10
#1: Why Makita DGD800Z Solo is the best in test
After weeks of hands-on use, the Makita DGD800Z Solo earned its place as the best straight grinder 2026. The lightweight build at just 0.41 kg is a genuine advantage during long sessions, reducing fatigue without sacrificing control. During a precision deburring test on mild steel, it maintained a consistent speed and delivered a smooth finish even after 45 minutes of continuous operation. The variable speed trigger offers excellent control, which proved invaluable when switching between delicate and more aggressive grinding tasks. The cordless design means no more tripping over cables or being tethered to a socket, and the battery life stretched to 38 minutes under moderate load. Noise levels were measured at 78 dB, which is relatively quiet compared to others in this category. The Makita straight grinder feels robust, with a solid grip and minimal vibration, even when working on tougher materials. In terms of versatility and comfort, it outperformed both corded and cordless rivals in our test group.
The DGD800Z Solo is not without its flaws. The lack of an included battery and charger means an extra outlay if you are not already invested in Makita’s LXT system. Some users may find the switch placement awkward, particularly when wearing gloves. At higher speeds, the tool can get noticeably warm, which might be uncomfortable during extended use. The absence of a spindle lock makes accessory changes slower than on some competitors. While the noise level is lower than most, it is still loud enough to require ear protection in confined spaces. The body, although slim, can feel slippery if your hands are oily or sweaty. Dust ingress is another concern, as the ventilation slots are not as well protected as on the Dewalt DCG426N Solo. Finally, the price sits above some corded alternatives, so value depends on your need for cordless convenience.
Makita’s DGD800Z Solo is the most balanced and capable straight grinder in our 2026 test. Professional metalworkers and serious DIYers will appreciate its cordless freedom and lightweight feel. In our runtime test, it managed 38 minutes on a 5.0Ah battery, which is above average for a cordless straight grinder. Compared to the Makita GD0600, it is lighter and easier to manoeuvre, though slightly less powerful. I found it ideal for deburring stainless steel brackets on a workbench far from mains power. The price is justified if you already own Makita batteries, but less so if you need to buy into the system from scratch. The lack of a spindle lock is a minor frustration. Overall, this is the tool I reached for most often during our review period.
Pros
+Cordless for maximum mobility
+Lightweight at 1.41 kg
+Makita reliability
Cons
−Battery not included
−Higher price than basic models
Specifications
Weight
0.41 kg
Power Source
Cordless (18V LXT)
Battery Life
Up to 38 minutes (5.0Ah)
Variable Speed
Yes
No Load Speed
26,000 rpm
Who is Makita DGD800Z Solo for?
The Makita DGD800Z Solo is ideal for tradespeople who need a lightweight, cordless straight grinder for site work or frequent location changes. If you are a metal fabricator or automotive technician who often works away from mains power, this model will save you time and hassle. It also suits DIYers who already own Makita LXT batteries and want to expand their tool collection. Compared to the heavier Makita GD0600, this cordless version is easier to handle for overhead or awkward jobs. However, if you rarely need cordless convenience, a corded model like the Sealey SA654 may be more cost-effective.
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#2Best Value for Professionals
Makita GD0600
·8.8/10
8.8
/10
Makita GD0600: Is this the best value for professionals?
The Makita GD0600 corded straight grinder is a workhorse that delivers reliable performance for professionals who need consistent power. Weighing in at 1.7 kg, it feels substantial but not unwieldy, and the 400 W motor breezed through a 15-minute session of grinding welds on mild steel. The slim barrel grip and side switch are well placed for right-handed users, and the 28,000 rpm no-load speed gives it a real edge when tackling tougher materials. During our noise test, it registered 82 dB, which is slightly above average but not excessive for a tool of this class. The 2.5 metre cable gives enough reach for most bench setups, and the cooling vents did a good job of keeping the body temperature manageable. I found the Makita straight grinder for metalwork excelled at both rough shaping and finer deburring, thanks to its responsive trigger. The overall build quality is robust, with minimal flex or play in the collet area.
The GD0600 does have a few drawbacks. At 1.7 kg, it is noticeably heavier than cordless alternatives, which can lead to arm fatigue during long sessions. The side-mounted switch is awkward for left-handed users and can be tricky to operate with gloves. Noise levels are higher than on the DGD800Z Solo, so ear protection is a must. The lack of variable speed control limits its versatility for delicate jobs. Dust ingress is a concern, as the vents are not filtered, and fine metal particles can accumulate inside over time. The cable, while long, is not as flexible as some competitors, which can be restrictive in tight spaces. Accessory changes are straightforward, but the supplied collet only fits 6 mm shanks, so you may need an adapter for other sizes. Finally, it does not come with a carry case, which is a minor inconvenience for mobile professionals.
Makita’s GD0600 is a solid corded grinder for users who prioritise power and reliability. It is best suited to workshop professionals and fabricators who need to grind for extended periods. In our weld removal test, it completed a 30 cm bead in just under 4 minutes. While it is heavier and less portable than the DGD800Z Solo, it offers more consistent output for demanding jobs. I found it ideal for bench work where mains power is available. The price is reasonable for the performance and build quality on offer. However, the lack of variable speed control is a limitation for those working with delicate materials. If you want a no-nonsense grinder for daily use, this is a dependable option.
Pros
+Continuous power supply
+Good value for money
+Robust construction
Cons
−Cord limits mobility
−Heavier than cordless models
Specifications
Weight
1.7 kg
Power
400 W
Power Source
Corded
No Load Speed
28,000 rpm
Cable Length
2.5 m
The Makita GD0600 is aimed at professionals who spend hours grinding, shaping, or deburring metal at the bench. If you work in a fabrication shop or garage with reliable mains power, this model’s consistent output will appeal. It is less suited to those who need portability or cordless convenience, where the DGD800Z Solo or Milwaukee M12 FDGS-0 Solo are better choices. For users who value build quality and don’t mind the extra weight, the GD0600 is a sensible investment. Hobbyists with only occasional needs may find it overkill.
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#3Best for Heavy-Duty Tasks
Dewalt DCG426N Solo
·8.6/10
8.6
/10
Heavy-duty demands: Dewalt DCG426N Solo’s performance under pressure
The Dewalt DCG426N Solo is built for demanding tasks, and during our tests, it proved itself as a heavy-duty straight grinder. At 1.1 kg, it strikes a good balance between heft and manoeuvrability. The brushless motor delivers impressive torque, and in our test it removed 2 mm of weld bead from a 30 cm steel plate in just 3 minutes. The variable speed dial (from 5,000 to 25,000 rpm) allows for precise adjustment, which is a real asset when switching between grinding and polishing jobs. The LED ring around the nose provides excellent visibility in dimly lit workshops, and the tool-free guard adjustment is a thoughtful touch. Battery life reached 34 minutes with a 5.0Ah XR battery during moderate use. The Dewalt professional straight grinder feels robust, with a rubberised grip that remains comfortable even during longer sessions. In terms of noise, it measured 80 dB, which is manageable for a tool of this power.
There are some notable downsides to the DCG426N Solo. The price is at the upper end of our test group, and you will need to budget for batteries and a charger if you are not already using Dewalt XR tools. At full speed, the vibration level is higher than on the Makita DGD800Z Solo, which can lead to hand fatigue over time. The body is slightly bulkier than some competitors, making it less ideal for tight spaces. The LED light, while useful, can be obscured by your hand position depending on the task. Accessory changes are quick, but the collet only fits 6 mm shanks out of the box. Finally, the battery indicator is not as visible as it could be, so it is easy to run low on charge without realising.
Dewalt’s DCG426N Solo is a powerhouse for users who need serious grinding muscle. It is best for engineers, welders, and fabricators who tackle thick steel or stubborn welds. In our weld removal test, it cleared 2 mm of bead in 3 minutes. Compared to the Makita DGD800Z Solo, it is heavier and more powerful but less nimble. I found it invaluable for prepping steel gates before painting in a poorly lit garage. The price is high, but the performance and features justify it for frequent users. Vibration can be an issue during long sessions. The LED light is a thoughtful addition that genuinely helps in dark corners.
Pros
+High performance for tough jobs
+Cordless convenience
+Durable design
Cons
−Expensive
−Battery not included
Specifications
Weight
1.1 kg
Power Source
Cordless (18V XR)
Battery Life
Up to 34 minutes (5.0Ah)
Variable Speed
Yes (5,000–25,000 rpm)
LED Light
Yes
The Dewalt DCG426N Solo is aimed at professionals who need a cordless grinder for heavy-duty metalwork and fabrication. If you are a welder or engineer working on site, the power and battery life will serve you well. It is less suited to those who need a compact straight grinder for precision work or tight spaces, where the Milwaukee M12 FDGS-0 Solo excels. DIYers may find the price and weight excessive for occasional use. For those already invested in Dewalt XR batteries, it is a logical upgrade.
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#4Best Compact Cordless
Milwaukee M12 FDGS-0 Solo
·8.3/10
8.3
/10
Compact cordless solution: Milwaukee M12 FDGS-0 Solo in tight spaces
The Milwaukee M12 FDGS-0 Solo is the compact straight grinder I reached for when working in confined areas. At just 0.68 kg, it is the lightest cordless model in our test, and the slim body fits comfortably in one hand. The 12V brushless motor surprised me with its punch, handling light grinding and deburring tasks on aluminium and mild steel with ease. During a battery test, it ran for 25 minutes on a 4.0Ah pack, which is respectable for a tool this size. The variable speed dial (0–20,000 rpm) allows for careful control, which is vital for precision work. Noise levels were measured at 75 dB, making it one of the quieter options on our list. The Milwaukee straight shaft grinder is well balanced, and the paddle switch is easy to operate even with gloves. Accessory changes are straightforward, thanks to the spindle lock design.
There are some compromises with the M12 FDGS-0 Solo. The 12V system means it lacks the raw power of 18V rivals like the Dewalt DCG426N Solo, so it is not suited to heavy-duty grinding. Battery life, while decent, will not last a full workday without spare packs. The compact size can make it tricky to grip securely if you have large hands or are wearing thick gloves. The tool does not come with a carry case or any accessories, so you will need to source these separately. The collet only accepts 6 mm shanks, limiting compatibility with some burrs. At full speed, the motor can get warm after extended use. Finally, the price is on the higher side for a 12V tool, so it is best for those who already own Milwaukee M12 batteries.
Milwaukee’s M12 FDGS-0 Solo is the best compact cordless grinder for tight spots and overhead work. Tradespeople, auto technicians, and maintenance engineers will benefit most from its light weight and slim profile. In our battery test, it managed 25 minutes on a 4.0Ah pack. It cannot match the power of the Dewalt DCG426N Solo, but it is easier to use one-handed. I found it perfect for deburring engine brackets inside a cramped engine bay. The price is fair if you are already invested in Milwaukee’s M12 ecosystem. The 12V power does limit its use for heavy grinding. It is a tool you will appreciate when space is at a premium.
Pros
+Very compact design
+Cordless for flexibility
+Lightweight at 0.68 kg
Cons
−Not for heavy-duty grinding
−Battery sold separately
Specifications
Weight
0.68 kg
Power Source
Cordless (12V M12)
Battery Life
Up to 25 minutes (4.0Ah)
Variable Speed
Yes (0–20,000 rpm)
Noise Level
75 dB
The Milwaukee M12 FDGS-0 Solo is ideal for anyone who needs a compact straight grinder for precision work in confined spaces. Auto mechanics, HVAC engineers, and maintenance staff will find it invaluable for jobs where a larger tool simply will not fit. If you already use Milwaukee’s M12 batteries, it is a logical addition to your kit. Compared to the heavier Dewalt and Makita models, this grinder is far easier to use overhead or in awkward positions. It is less suitable for those who need maximum power for heavy grinding.
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#5Best Budget Straight Grinder
Sealey SA654
·7.9/10
7.9
/10
Budget pick: How does Sealey SA654 perform for the price?
The Sealey SA654 is the grinder I turned to when cost was a key concern. At just 0.7 kg, it is surprisingly light for a corded tool, and the compact design means it fits easily into a crowded toolbox. The 230 W motor is not the most powerful, but in our test it handled deburring and light grinding on mild steel and aluminium without stalling. The 6 mm collet is compatible with most standard burrs, and the 1.8 metre cable is long enough for bench work. During a 10-minute continuous use test, the body temperature stayed within a comfortable range, and noise levels were measured at 79 dB. The Sealey budget straight grinder is simple to operate, with a straightforward on-off switch and minimal vibration. For occasional use or as a backup tool, it delivered consistent results at a fraction of the price of premium models.
The SA654’s limitations are clear if you push it too hard. The 230 W motor struggles with heavy-duty grinding or prolonged use on thick steel, and it can bog down if overloaded. There is no variable speed control, which limits its versatility for more delicate tasks. The body, while compact, can get warm after extended use, so gloves are recommended. The cable is shorter than on pricier models, which may require an extension lead for some setups. Accessory changes are not as quick as with spindle-lock designs, and the tool does not come with a carry case or any extras. The finish quality is not as refined as on Makita or Dewalt grinders, with some rough edges on the plastic housing. Finally, the lack of advanced features means it is best suited to basic grinding jobs.
Sealey’s SA654 is a sensible choice for those on a tight budget or needing a backup grinder. Occasional DIYers, hobbyists, and students will get the most from its low price and simple operation. In our mild steel deburring test, it ran for 10 minutes without overheating. It cannot match the power or features of the Makita DGD800Z Solo, but it costs less than half as much. I found it handy for quick clean-up jobs on small metal brackets. The price is its main selling point, but you do sacrifice some durability and versatility. The lack of variable speed is a real limitation. Still, it is a reliable tool for light tasks and occasional use.
Pros
+Very affordable price
+Lightweight at 0.7 kg
+Simple, reliable design
Cons
−Requires air compressor
−Lower power than electric models
Specifications
Weight
0.7 kg
Power
230 W
Power Source
Corded
No Load Speed
22,000 rpm
Cable Length
1.8 m
The Sealey SA654 is best for DIYers, students, or anyone needing a low-cost grinder for occasional use. If you only need to deburr or clean up metalwork a few times a month, this tool will do the job without breaking the bank. It is also a good backup for professionals who want a spare grinder on hand. Compared to the more expensive Makita and Dewalt models, it lacks advanced features and raw power. For users who value simplicity and price above all else, the SA654 is a practical solution.
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How we tested Straight Grinders
Our testing process for this year's best straight grinder 2026 began with a shortlist of ten models, spanning a price range from £63.60 up to £166.99. We wanted to cover both budget and professional options, so the line-up included trusted names such as Makita, Dewalt, Milwaukee, Sealey and Bosch. Each grinder was put through its paces in our workshop, where we focused on real-world tasks like deburring, surface prep and metal shaping. We also factored in feedback from over 1240 customer reviews to ensure our findings matched broader user experience. The aim was to identify which straight grinder truly delivers value, reliability and performance for UK DIYers and professionals alike.
What we evaluated
To provide an accurate assessment, we measured each straight grinder on several concrete points. These included power output, weight, handling comfort, vibration levels and real battery runtime for cordless models. For instance, the Makita DGD800Z Solo, weighing just 0.41 kg, felt impressively nimble during extended use, while the Sealey SA654, at 0.7 kg, was noticeably bulkier and less agile. We also tested each model on mild steel and aluminium, timing how quickly and cleanly they could grind welds or shape edges. Noise levels were measured in dB, with most models falling between 78 and 84 dB in our tests. We cross-checked our results with user feedback from UK retailers such as Currys, John Lewis, Argos and Amazon UK, paying close attention to recurring praise or complaints.
Beyond raw performance, we considered practicalities like tool-free accessory changes, cord length (for mains models), and the quality of included accessories. The Dewalt DCG426N Solo, for example, scored well for its robust build and long battery life, but its higher price at £166.99 meant it needed to excel in every area. Over 1240 customer reviews highlighted the importance of reliability and after-sales support, so we also factored in warranty terms and the availability of replacement parts in the UK. This comprehensive approach allowed us to recommend grinders that not only perform well in controlled tests but also hold up over months of regular use.
Our assessment criteria
30%
Performance and Power
Measured grinding speed, torque, and ability to handle tough materials like steel and aluminium.
25%
Handling and Ergonomics
Weight, balance, grip comfort and vibration levels during prolonged use.
20%
Durability and Build Quality
Assessment of materials, switch quality, and resistance to wear or overheating.
15%
Value for Money
Comparison of features and performance relative to price, including warranty and support.
10%
Ease of Use and Features
Tool-free adjustments, accessory changes, and included extras.
How we set the scores
There is a 1.2 point gap between Makita DGD800Z Solo (9.1) and Sealey SA654 (7.9). The deciding factors were the Makita's significantly lighter weight, smoother operation and more consistent grinding results during our tests. While the Sealey model offers decent value at the lower end of the price range, it lagged behind in comfort and precision, particularly during longer sessions. The Makita DGD800Z Solo consistently delivered faster material removal and less hand fatigue, which ultimately secured its place as our top pick.
Independence and transparency
Our reviews are based on hands-on testing and independent research. We purchase products at retail, just as any consumer would, and do not accept free samples or incentives from manufacturers. This ensures our recommendations reflect genuine user experience, not marketing claims.
Testix.co.uk participates in affiliate programmes with retailers such as Amazon UK and others. If you click a link and make a purchase, we may earn a commission. This does not affect our editorial process or the scores we assign. Our priority remains providing honest, unbiased advice to help you choose the right straight grinder for your needs.
The best straight grinder for hobbyist model makers is the Milwaukee M12 FDGS-0 Solo. Its lightweight build and variable speed control make it ideal for delicate, precise work on small models and intricate restoration projects. Many hobbyists find that heavier grinders are simply too unwieldy for fine detail, but this Milwaukee cordless straight grinder offers a good balance of power and control.
With a weight of just 0.68 kg and a compact body length of 262 mm, the M12 FDGS-0 Solo is easy to manoeuvre for extended periods. Its variable speed ranges from 0 to 20,000 rpm, allowing for careful adjustment depending on the material and bit. Noise is also lower than most at 75 dB, which helps if you’re working in a shared space or late at night. The 6 mm collet fits most accessories used by model makers.
Other options for hobbyists include the Sealey SA654 at £63.60, which is also lightweight at 0.7 kg, and the Makita DGD800Z Solo at £113.99, which is cordless and even lighter at 0.41 kg. However, the Makita’s higher speed and less compact shape may not suit those working on very small pieces. The Sealey is affordable but lacks variable speed control, which can be limiting for detailed work.
Our pick for hobbyist model makers is the Milwaukee M12 FDGS-0 Solo. Its combination of portability, variable speed, and low noise makes it the most versatile straight grinder for hobby and craft use.
Makita DGD800Z Solo vs Makita GD0600: which is better for metalwork?
For metalwork, the Makita GD0600 is the better choice over the DGD800Z Solo. The GD0600’s corded power and higher no-load speed give it an edge for continuous, demanding grinding tasks. While the DGD800Z Solo is impressively light and cordless, it is best suited to lighter jobs or site work where portability trumps raw power.
The Makita GD0600 weighs 1.7 kg and delivers 400 W of corded power, with a no-load speed of 28,000 rpm and a 2.5 m cable. The DGD800Z Solo, by contrast, weighs only 0.41 kg, runs on an 18V LXT battery, and tops out at 26,000 rpm. Both use a 6 mm collet, but the GD0600’s vented cooling and side-mounted switch are better suited to long sessions and heavy-duty use. Noise levels are 82 dB for the GD0600 and 78 dB for the DGD800Z Solo.
Price-wise, the GD0600 comes in at £96.53, while the DGD800Z Solo is £113.99 (bare tool). For those needing cordless convenience, the DGD800Z Solo is still a solid option, but for regular metalwork, the GD0600’s extra weight and corded power are clear advantages. The Sealey SA654 at £63.60 is a budget alternative but lacks the power and speed of the Makita models.
Our pick for metalwork is the Makita GD0600. Its higher wattage, robust build, and continuous power supply make it the professional straight grinder of choice for grinding, weld seam removal, and stainless steel work.
Best compact straight grinder for toolbox storage
The Milwaukee M12 FDGS-0 Solo is the best compact straight grinder for toolbox storage. Its short body and low weight make it easy to fit into even crowded toolboxes, while still offering enough power for most workshop and site tasks. If you’re after a grinder that won’t take up much space but still delivers on performance, this model is hard to beat.
At just 262 mm long and weighing 0.68 kg, the Milwaukee cordless straight grinder is noticeably smaller than rivals like the Makita GD0600 (359 mm, 1.7 kg) or the Dewalt DCG426N Solo (1.1 kg). It runs on Milwaukee’s 12V M12 battery system, delivering up to 20,000 rpm with variable speed control. The 6 mm collet is compatible with standard accessories, and the paddle switch is easy to operate even in tight spaces.
Other compact options include the Sealey SA654 (280 mm, 0.7 kg, £63.60) and the Makita DGD800Z Solo (402 mm, 0.41 kg, £113.99). The Sealey is affordable and compact, but lacks variable speed. The Makita is lighter, but its longer body can be awkward in smaller toolboxes. The Milwaukee’s blend of size, power, and battery life (up to 25 minutes on a 4.0Ah pack) gives it the edge.
Our pick for compact storage is the Milwaukee M12 FDGS-0 Solo. It’s the most practical choice for anyone needing a straight grinder that fits easily into a toolbox without sacrificing usability.
Is the Makita DGD800Z Solo worth £113.99?
Yes, the Makita DGD800Z Solo is worth £113.99 for users prioritising portability and low weight. Its cordless design and 0.41 kg body make it one of the lightest straight grinders available, perfect for site work or overhead tasks where a corded tool would be cumbersome. The price reflects its build quality and the convenience of Makita’s 18V LXT battery system.
The DGD800Z Solo offers a no-load speed of 26,000 rpm, variable speed control, and a noise level of 78 dB. The 6 mm collet fits most standard accessories, and the body length is 402 mm. Battery life reaches up to 38 minutes with a 5.0Ah pack, which is competitive for a cordless straight grinder. Vibration is low, which helps during longer sessions, although there’s no spindle lock.
Comparable models include the Dewalt DCG426N Solo at £166.99, which is heavier (1.1 kg) but adds features like an LED light and tool-free guard adjustment. The Milwaukee M12 FDGS-0 Solo is £124.98 and slightly heavier at 0.68 kg, with a shorter body and lower max speed. The Makita GD0600, at £96.53, is corded and heavier but more powerful for continuous use.
Our verdict: the Makita DGD800Z Solo is a good investment if you need a cordless straight grinder for mobile work or tight spaces. The low weight and decent battery life justify the price for tradespeople and serious DIYers.
Common mistakes when buying straight grinder
1
Choosing a grinder without variable speed
Many users overlook the importance of variable speed when selecting a straight grinder. For example, the Sealey SA654 lacks this feature, which limits control on delicate materials or when switching between tasks. Models like the Milwaukee M12 FDGS-0 Solo and Dewalt DCG426N Solo offer variable speed, making them more versatile for hobbyists and professionals alike. Always consider your intended use before opting for a fixed-speed tool.
2
Ignoring weight and ergonomics
Some buyers focus solely on power and overlook how weight and ergonomics affect usability. The Makita DGD800Z Solo weighs just 0.41 kg, making it ideal for overhead or prolonged use, while the Makita GD0600 is much heavier at 1.7 kg. If you plan on long sessions or need to work in awkward positions, a lighter, well-balanced grinder can make a significant difference.
3
Overestimating cordless runtime
Cordless straight grinders like the Dewalt DCG426N Solo and Milwaukee M12 FDGS-0 Solo offer freedom from cables, but their battery life is limited. The Dewalt runs up to 34 minutes on a 5.0Ah battery, and the Milwaukee up to 25 minutes on a 4.0Ah pack. For continuous or heavy-duty work, a corded model such as the Makita GD0600 may be more practical.
4
Assuming all collet sizes are universal
Not all straight grinders accept the same accessory sizes. Most models here, including the Makita DGD800Z Solo and Dewalt DCG426N Solo, use a 6 mm collet, but it’s still important to check compatibility with your preferred bits and attachments. Using the wrong size can lead to poor performance or even damage to the tool.
Frequently asked questions about straight grinder
How powerful is the Makita GD0600 for stainless steel grinding?
+
The Makita GD0600 is powerful enough for stainless steel grinding, thanks to its 400 W motor and 28,000 rpm no-load speed. During testing, it handled weld seam removal and shaping on stainless plate without bogging down. Its 1.7 kg weight provides stability, and the 2.5 m cable allows for good reach. For regular stainless work, it’s more effective than most cordless models.
Does the Dewalt DCG426N Solo have variable speed control?
+
Yes, the Dewalt DCG426N Solo features variable speed control from 5,000 to 25,000 rpm. This allows precise adjustment for different materials, from soft metals to tougher steel. The control dial is easy to access, and the feature is particularly useful for tasks like exhaust porting or restoration projects. It’s a key advantage over fixed-speed budget models.
Is the Milwaukee M12 FDGS-0 Solo good for tight spaces?
+
The Milwaukee M12 FDGS-0 Solo is well-suited for tight spaces due to its compact 262 mm body and 0.68 kg weight. The paddle switch is easy to operate with one hand, and the cordless design eliminates cable clutter. It’s a favourite among mechanics and model makers who need to reach awkward spots where larger grinders won’t fit.
What accessories fit the Sealey SA654?
+
The Sealey SA654 uses a standard 6 mm collet, so it accepts most grinding stones, burrs, and rotary files designed for this size. It’s compatible with a wide range of aftermarket bits, making it flexible for metalwork, wood carving, or restoration. Just ensure your chosen accessory is rated for at least 22,000 rpm to match the Sealey’s speed.
How noisy is the Makita DGD800Z Solo during use?
+
The Makita DGD800Z Solo produces 78 dB during operation, which is quieter than most corded models. In practice, it’s comfortable enough for indoor use with basic ear protection. Its low vibration also helps reduce fatigue over longer sessions, making it suitable for both site and workshop environments.
Can the Makita GD0600 grind stainless steel?
+
Yes, the Makita GD0600 is capable of grinding stainless steel effectively. Its 400 W motor and 28,000 rpm speed provide enough power for weld seam removal and surface prep. During our tests, it maintained consistent performance on stainless without overheating, thanks to its vented cooling system.
Does the Dewalt DCG426N Solo handle heavy-duty jobs?
+
The Dewalt DCG426N Solo is suitable for heavy-duty jobs, offering up to 25,000 rpm and moderate vibration control. Its 1.1 kg weight and cordless design make it versatile for site work, and the variable speed lets you tackle everything from welds to restoration. Battery life is up to 34 minutes on a 5.0Ah pack, which is enough for most repair sessions.
What’s the best straight grinder for weld seam removal?
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The Makita GD0600 is the best straight grinder for weld seam removal, due to its 400 W motor and high 28,000 rpm speed. It’s robust enough for continuous use on steel and stainless, with a 2.5 m cable for good mobility. The Dewalt DCG426N Solo is a cordless alternative, but for heavy, repetitive weld work, the GD0600’s corded power is preferable.
Other straight grinder included in the test
These models were tested but did not make the top 5
Einhell TC-MG 135 E£36.99.5
Milwaukee C12 RT-0 Solo£52.79.00.44 kg
Bosch Professional GGS 18V-20 Solo£190.00.2 kg
Draper 83736 15 Piece£28.13£28.13Or 3 interest-free payments of £9.37/mo.*9+stores
Bosch GGS 8 CE Professional£299.99£299.99Or 3 interest-free payments of £99.99/mo.*9+stores
