Angle grinder buying guide
Updated: October 2026
You are standing in a garage with box section, tiles, or a kerb, and the amazon.co.uk grid is a wall of watt figures. This angle grinder buying guide puts the decisions in the order that changes the job: disc class, then cord or battery, then the watts the listing prints, then whether a guard, a spanner, and a disc are in the box. Prices are the twelve listings in our [angle grinder comparison](/hub/tools/angle-grinder), captured on 20 October 2026, from about £25.99 to about £67.55. That spread is this set, not the whole UK market. There is no lab cut. A qualifying purchase can earn a commission at no extra cost to you.
You are standing in a garage with box section, tiles, or a kerb, and the amazon.co.uk grid is a wall of watt figures.
You are standing in a garage with box section, tiles, or a kerb, and the amazon.co.uk grid is a wall of watt figures. This angle grinder buying guide puts the decisions in the order that changes the job: disc class, then cord or battery, then the watts the listing prints, then whether a guard, a spanner, and a disc are in the box. Prices are the twelve listings in our angle grinder comparison, captured on 20 October 2026, from about £25.99 to about £67.55. That spread is this set, not the whole UK market. There is no lab cut. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Disc class | Power | Box line | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Bosch Professional Bosch Professional GWS 7-115 | 115 mm | Corded, 720 W | Guard and spanner, no disc | 8.6 | about £67.55 | View offer |
| Alternative |  DCA DCA ADSM06-125 | 125 mm | Battery kit, 630 W | 4.0 Ah battery and charger | 7.5 | about £56.98 | View offer |
| Best value |  DCA DCA ASM18-115 | 115 mm | Corded, 860 W | Six discs, two guards, pin spanner | 7.8 | about £29.99 | View offer |
On this page
What you are actually choosing
The first split is the disc, not the brand. In this set the small classes are 115 mm, which UK shops also call 4.5 inch, and 125 mm, which they call 5 inch. None of the twelve is a 230 mm grinder. For one-off metal in a flat or a shed, 115 mm is the default. Step to 125 mm when the cut is often near the smaller disc’s limit. Thick paving in one pass is a larger tool, and you will not find it here. Depth and the rule against fitting the larger disc to the smaller guard are on the 115mm vs 125mm angle grinder page.
Power source is independent of diameter. If the work stays beside a socket, a corded tool runs until you stop. If you are away from a socket and you do not already own a battery the seller names, the only complete cordless kit in this set includes a pack and a charger. The three cheaper cordless titles are bare bodies. That choice is the corded vs cordless angle grinder page.
Watts, speed, and what the listing must print
Screwfix’s household band is about 500–900 W for occasional 115 mm use and about 700–1,200 W for regular small-scale 125 mm work. Those are orientation figures. The corded 115 mm tools that print a wattage sit from 720 W to 900 W. A lower sticker is not proof of a weaker cut. The Bosch UniversalGrind 750-115 does not print watts or no-load speed. The 750 in the model name is not a figure you can quote from the technical block.
On 125 mm corded tools, one listing prints 1,200 W and another 1,000 W. The cordless kit prints 630 W. A bare body prints 200 W. Do not read that 200 W line as the same sort of motor as a 900 W corded grinder. No-load rpm is not the speed once the disc is in the cut. Where a bullet and a technical line disagree, match a disc to the higher printed speed. If the included-components line and the advert bullet do not match, confirm the carton.
Guard, discs, and the plug
Electrical Safety First expects a UK 3-pin plug and fuse on the tool or its charger, a guard in place, and the plug out before you change a wheel. No specification row in this set confirms BS 1363. Printed voltages here are 230 V, 240 V, and 220 V. UK mains are 230 V, so a 220 V line is a reason to look at the plug in the photos. One review mentions a moulded UK plug. That is one sample, not a specification.
The box should let you fit a disc on day one: a guard, a side handle, a pin spanner or two-hole spanner, and at least one disc of the diameter on the title. A guard and a spanner without a disc means a separate shop trip. A disc list without a spanner is the failure reviewers describe when nothing locks the spindle. Who each listing is for is on the best page linked below. Refuse a carton that cannot mount a wheel.
What this set can and cannot do
Near a socket, a corded tool and a metal cut-off disc will handle box section, and a flap or grinding disc will dress a weld. Away from a socket, use the kit that includes a battery, or a bare body only if you already own a pack the seller lists. Those bare bodies name DeWalt pack codes. They are not DeWalt tools, and Electrical Safety First warns against treating another maker’s battery or an adapter as safe.
Do not cut wood because a kit includes a wood saw blade. Screwfix does not recommend cutting wood with an angle grinder. The Office for Product Safety and Standards alert PSA5 says not to fit a toothed saw blade or a chainsaw disc. None of these listings describes a vacuum port. For stone and concrete dust, HSE points to water or extraction. If you only need a few cuts a year, a 115 mm corded grinder is enough when the guard and the spanner are real. Open the main comparison once those checks are decided.
Common questions
What size angle grinder do I need for metal at home?
For bolts, box section, and the odd tile, a 115 mm grinder is the size this set is built around. Screwfix’s rule of thumb is about 30 mm of cutting depth. Move to 125 mm, about 38 mm on that same guide, when you often meet thicker stock. You do not need a 230 mm grinder for ordinary DIY metal, and none of these twelve is that class.
How many watts should a first 115 mm grinder have?
Screwfix’s occasional-use band is about 500–900 W. The corded 115 mm tools here that print a wattage run from 720 W to 900 W. The 720 W Bosch Professional still has 4.6 from 1,378 reviews, so do not reject it for the number alone. If the technical block prints no wattage, as on the UniversalGrind 750-115, do not invent one from the model name.
Does the box need a disc, a guard, and a spanner?
Yes, if you want to cut on the day it arrives. A guard and a spanner without a disc, which is the Bosch Professional supply list, means a separate disc purchase. A disc list without a spanner is the failure UK reviewers describe on the DEWINNER. Check the included-components line, not only the advert bullet, because those two lines disagree on several of these listings.
Corded or cordless if I have a socket in the garage?
Buy corded. You will not stop mid-cut to charge, and the corded prices in this set start at about £25.99. Choose the DCA kit at about £56.98 only when the work leaves the socket, and choose a bare body only when you already own a pack the seller names. A body with no battery is not cheaper than a corded grinder near £30 once you price the pack.
Can I cut wood because a kit includes a wood blade?
No. LiunxDromic lists a wood saw blade and the included-components line does not even confirm the kit. OPSS PSA5 tells you not to fit a toothed blade, and Screwfix does not recommend wood cutting with an angle grinder. Use a saw for timber. Keep the grinder on metal, masonry, and tile with the correct disc.
What should I check on the plug before I rely on a 220 V line?
DEKOPRO prints 220 V, POSENPRO prints 230 V, and Bosch Professional and DEWINNER print 240 V. UK mains are 230 V, and Electrical Safety First wants a UK 3-pin plug and fuse. No row here confirms BS 1363, so use the listing photos and the plug in your hand. A 240 V line is normal labelling, not proof of a continental plug.
Do I need a 230 mm grinder to cut a kerb in one pass?
For a deep kerb or thick paving in one pass, yes, and that tool is outside this comparison. Screwfix’s figure for 230 mm is about 70 mm of depth. The 115 mm and 125 mm machines here will nibble a shallower cut or a score. They will not replace a large grinder on a structural cut. Hire the larger tool, or leave that cut to someone who uses one regularly.
Related pages
Sources
Public UK sources from the research digest, used for this page in October 2026. Prices, stars and review counts are from the twelve amazon.co.uk listings captured on 20 October 2026. HSE limits and PUWER apply at work. They are not a certificate for a domestic grinder, and none of these scores is a laboratory test.
- HSE, PUWER (retrieved 20 October 2026)
- HSE, HSG17 (retrieved 20 October 2026)
- HSE, vibration regulations (retrieved 20 October 2026)
- HSE, construction noise (retrieved 20 October 2026)
- Electrical Safety First, Angle grinders (retrieved 20 October 2026)
- Screwfix, Angle grinder buying guide (retrieved 20 October 2026)
- OPSS, PSA5 toothed saw blades (retrieved 20 October 2026)
- DTC, Cutting and grinding discs (retrieved 20 October 2026)