The best 115 mm angle grinders, compared.
Top pick: Bosch UniversalGrind 750-115 – 4.7 from 111 ratings, three cutting discs, and UK reviews that mention tiling and a registerable extra warranty, at about £44. Best value: DEWINNER 850 W – About £29.74 for a stated 240 V, 850 W, 12,000 rpm kit with six discs and 4.3 from 716 ratings. Updated October 2026.
A 115 mm angle grinder is the compact disc class UK merchants still treat as the everyday small grinder. The wheel is about 4½ inches across, on a standard M14 spindle with a 22.2 mm bore, and published cutting depth is about 30 mm. It is lighter than a 125 mm tool and is bought for thin steel, bolts, rust, weld dressing, and shallow tile or masonry cuts. You recognise a fit by the guard and the title both saying 115 mm, a disc marked at or above the tool's no-load speed, and a BS 1363 13 A plug on a 230 V or 240 V plate. Leave the guard on. A larger disc can sit on the same spindle; the guard is there to stop you fitting it. Unplug before every disc change, and use an RCD on an extension. A side handle, a rotatable guard and a switch you can use in gloves matter more than a small watt gap. Disc, guard and plug checks are in the [115 mm angle grinder buying guide](/hub/tools/angle-grinder-115mm/sub/angle-grinder-115mm-buying-guide).
A 115 mm angle grinder is the compact disc class UK merchants still treat as the everyday small grinder.
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Personal buying guide
Question 1 of 2
Do you need discs in the box?
Across 111 amazon.co.uk reviews at 4.7 stars, the Bosch UniversalGrind 750-115 is the £44.00 corded body with the strongest star line in this set. The carton lists three cutting discs, a side handle and a guard converter. Wattage, voltage, rpm and the spindle are not stated in the listing table, so the 750 in the model name is a label, not a measured figure. UK reviews call it compact for home mechanics, useful for tiling, and one reviewer used it for hours in a DIY setting. Instructions are called poor in one review. It is the top pick in this set if you want a named brand and discs in the box and you will still match a 115 mm disc to the plate speed when you replace the kit discs.
Pros
Cons
Best for: You want a named Bosch DIY body at £44 with three cutting discs in the carton, and you will match later discs to the speed printed on the tool.
Less suitable: You need wattage and rpm stated before you buy, or you already own discs and want a lower price.
Specifications
Common questions
Does this Bosch come with discs?
Yes. The included line lists three straight cutting discs, a side handle and a guard converter.
What wattage and speed does the listing give?
The listing table does not state wattage, voltage or rpm. The included name is UniversalGrind 750-115.
What do UK reviews say about the warranty?
One UK review says you can register for a three-year extended warranty with Bosch.
Across 716 amazon.co.uk reviews at 4.3 stars, the DEWINNER DE-T1088 is a £29.74 corded 850 W kit on 240 V with a listed 12,000 rpm. The title and bullets agree on six starter discs, which is why it is the best value in this set if you do not already own 115 mm consumables. One UK review cut roof tiles and box metal with the same tool and said it did not feel cheap. The brand is unfamiliar, the spindle thread is not stated in the listing table, and durability beyond occasional DIY is not shown in the stored reviews. Match any replacement disc to 12,000 rpm and 115 mm.
Pros
Cons
Best for: You want a first kit around £30 with six starter discs, a stated 240 V plate and 12,000 rpm, and you accept an unfamiliar brand.
Less suitable: You already own 115 mm discs, or you want a known UK brand and a longer proven service life.
Specifications
Common questions
How many discs are in the DEWINNER box?
The title says six discs. The bullets list three grinding discs, two cutting discs and one flap disc.
What voltage does it use?
The table says 240 V and 850 W with a 12,000 rpm no-load speed.
Is restart protection claimed?
Yes. The bullets claim an accidental-restart prevention switch. That is a listing claim, not a test.
Across 556 amazon.co.uk reviews at 4.3 stars, the C P CHANTPOWER CPAG590-UK is a £30.54 corded 900 W kit with five starter wheels. Voltage is not stated. The no-load speed is printed two ways. UK reviews like the extras and the power on pipe and rust. The repeating limit is the stiff slide switch, including a how-to from a reviewer who had to press the back of the switch first. At 2.76 kg it is among the heavier bodies in this set. It is a kit buy if you will live with that switch, not a first tool if you need a clean off action.
Pros
Cons
Best for: You want a 900 W kit with five wheels for pipe and rust, and you can work a stiff slide switch.
Less suitable: You need a clean off action, a single rpm figure, or a stated voltage.
Specifications
Common questions
How many discs come with the CHANTPOWER?
The title says five wheels. The bullets list two grinding, two cutting and one flap disc plus spare brushes.
What speed should a replacement disc match?
The table says 11,000 rpm and the bullets say 12,000 rpm. Match a new disc to the higher plate figure if that is what is printed on the tool.
Why do reviews mention the switch?
Several UK reviews say the safety slide is hard to push. One reviewer says you must press the back of the switch before sliding it up.
Across 116 amazon.co.uk reviews at 4.3 stars, the Dong Cheng DSM09-115S is a £26.85 corded 800 W, 11,800 rpm body with an M14 spindle and a hard case. That case is the reason to pick it if you want somewhere to keep the tool. You still have to buy a cutting disc: the carton is one flap disc, and buyers who expected a mixed set say so. Item weight is 3.58 kg against a 2 kg bullet. Voltage is not stated. Two guards and a lock-on slide are claimed.
Pros
Cons
Best for: You want a hard case around an 800 W body with an M14 claim, and you will buy a cutting disc separately.
Less suitable: You expected a mixed disc set in the carton, or one published weight.
Specifications
Common questions
Does the Dong Cheng come with cutting discs?
No. The title and bullets list one Type 27 flap disc. UK reviews repeat that only one disc arrived.
Does it include a case?
Yes. The title says a hard case and the bullets name a double-layer storage bag or case.
What is the weight?
The item-weight field is 3.58 kg. The bullets say the metal grinder weighs 2 kg. The case likely explains the gap.
Across 74 amazon.co.uk reviews at 4.3 stars, the DCA ASM18-115 is a £29.99 corded 860 W kit at 11,800 rpm with an M14 spindle and a listed 1.67 kg body. The carton is the most complete in this set: six discs and two guards. UK reviews praise the slim grip and use on tiles, slate and light metal, and they also say the guards are fiddly and the kit discs are starters. A minority report burnout. Voltage is not stated. It is a first kit if you want consumables in the box and you accept a shorter, less proven life than the Bosch.
Pros
Cons
Best for: You want six discs and two guards in one carton on a light listed body, and you will treat the kit discs as starters.
Less suitable: You need a stated voltage, a large review sample, or fewer burnout reports than the minority of UK reviews here.
Specifications
Common questions
Does the DCA include discs and both guards?
Yes. The included line lists six 115 mm discs plus a cutting guard and a grinding guard.
What spindle does it use?
The bullets state an M14 spindle and a 22.2 mm bore for standard 115 mm discs.
What do UK reviews say about durability?
Most captured UK lines call it good value for occasional DIY. A minority report burnout after light use.
Across 1,490 amazon.co.uk reviews at 4.2 stars, the Einhell TC-AG 115/750 is the high-volume named DIY body at £32.50. The table says 230 V, 11,000 rpm and 1.87 kg. Soft start and a restart safeguard are claimed. There is no disc in the box. The wattage is printed as 750 W and 720 W on the same listing, and one bullet describes a lamp dimmer that is not a grinder feature. UK reviews like the brand and use it on porcelain with a bought blade; they also repeat the awkward switch. Buy it if you already own 115 mm discs rated at or above 11,000 rpm and you will check the switch on arrival.
Pros
Cons
Best for: You already own 115 mm discs rated at or above 11,000 rpm and you want a known DIY brand with a large UK review count.
Less suitable: You need discs in the box, or a switch that UK reviews describe as easy to use with gloves on.
Specifications
Common questions
Does the Einhell come with a disc?
No. The bullets say the cutting wheel is available separately. One UK review stored the spanner inside the handle.
Is it 720 W or 750 W?
The title and horsepower line say 750 W. The wattage field says 720 W. Treat both as listing figures.
What do UK reviews say about the switch?
More than one UK review calls the push-down-and-forward on/off switch unstable or hard to use, including a buyer who had two units.
Across 201 amazon.co.uk reviews at 4.2 stars, the KATSU 101676 is a £22.99 corded 720 W, 230 V body at 10,000 rpm with no disc in the box. That is the lowest no-load speed in this set, which is easier on older discs and slower on a cut. UK reviews like the metal gearbox for the price and say it is not industrial. One review reports smoke after five minutes, and one buyer found the tool too heavy. Guard and side handle are not stated in the listing table. Buy it only if you already own 115 mm discs and you treat it as occasional DIY.
Pros
Cons
Best for: You already own 115 mm discs and you only need occasional DIY on a stated 230 V, 10,000 rpm body.
Less suitable: You need a disc in the box, a stated guard, or anything beyond light home use.
Specifications
Common questions
Does this KATSU include a disc?
No. The bullets say the disc is not included. Reviews repeat that no discs arrived.
What speed must a disc match?
The table says 10,000 rpm on 230 V. Use a 115 mm disc marked at or above 10,000 rpm.
What do UK reviews say about failures?
One UK review says the tool burned out and smoked after five minutes. Other lines call it fine for light home use only.
Across 236 amazon.co.uk reviews at 4.1 stars, the DEKOPRO 900 W is a £25.99 corded short-handle body listed at 12,000 rpm on 220 V AC. UK reviews call it capable for the price. The carton lists a grinding wheel and two guards, not a full cutting set, and there is no case. Voltage printed as 220 V is a plate-check, not a reason to invent a UK incompatibility. Spindle thread is not stated. It is a cheap 900 W body if you already own 115 mm discs rated at or above 12,000 rpm.
Pros
Cons
Best for: You already own 115 mm discs rated at or above 12,000 rpm and you want a £25.99 body with two guards listed.
Less suitable: You need a cutting disc and a case in the box, or a spindle thread printed on the listing.
Specifications
Common questions
What voltage is listed?
The table says 220 V AC. UK mains are 230 V. Confirm the plate and the plug before you buy.
Does it include a cutting disc?
The included line lists grinding wheels plus a cutting guard. It does not list a cutting disc.
Is restart protection claimed?
Yes. The bullets claim the tool will not restart by itself after a power cut.
Across 117 amazon.co.uk reviews at 4.0 stars, the DEKOPRO 750 W is the £18.05 entry body: 12,000 rpm, 220 V, a grinding wheel and a cutting guard. UK reviews call it sturdy for the money and one used a diamond blade on tiles. Limits in the stored reviews are a button that broke on first use, a guard one reviewer would not trust, and only two handle positions. It is the price floor, not a top pick. If you buy it, fit a disc you trust and keep the guard on.
Pros
Cons
Best for: You want the lowest captured price at £18.05 and you will fit a disc you trust and keep the guard on.
Less suitable: You want a stronger review line, a guard reviewers trust, or a stated spindle.
Specifications
Common questions
Is this the cheapest tool in the set?
Yes. The captured price is £18.05, the lowest of the twelve amazon.co.uk listings.
Does the guard stay on?
A cutting guard is listed. One UK review says the guard does not fit securely and the reviewer did not use it.
What voltage is listed?
The table says 220 V. Confirm the plate and the plug.
Across 73 amazon.co.uk reviews at 4.0 stars, the Draper Storm Force 56457 is a £22.98 corded 650 W, 240 V body at 11,000 rpm with a claimed 2 m BS-plug cable. That plug line is the clearest UK-mains statement in this set. There is no disc in the included line. UK reviews split between a named-brand bargain that cut exhaust bolts and units that jammed, overheated, or died after a few slabs. The plastic handle arrived broken in one review. Lowest wattage in the set. Occasional bolt work if you already own discs, not a daily tool.
Pros
Cons
Best for: You already own discs and you want a named brand with a claimed BS plug for occasional bolt work.
Less suitable: You need a disc in the box, or a tool you will use every weekend.
Specifications
Common questions
Does the Draper include a disc?
No. The included line is the 650 W grinder. One UK review fitted a separately bought Bosch 115 mm disc.
Does it have a UK plug?
The bullets claim a 2 m cable with a BS plug. Voltage is listed as 240 V.
What failures appear in UK reviews?
One review says the trigger jammed after about a month. Another says the tool stopped after cutting four slabs. One handle arrived broken.
Across 38 amazon.co.uk reviews at 4.0 stars, the KATSU 100187 is a £23.99 corded 750 W-class body at 11,000 rpm with an M14 claim and no disc. Light weight (1.93 kg) and stone-cutting praise sit next to a repeating spindle-lock failure: the button that lets you change a disc. Without that lock the tool is awkward to use safely. Voltage is not stated. Skip it unless a replacement unit is easy to return; the other KATSU in this set at least states 230 V.
Pros
Cons
Best for: You can return it easily, and you will check that the spindle lock engages before you keep this light 750 W body.
Less suitable: You need a spindle lock that UK reviews say works, a disc in the box, or a stated voltage.
Specifications
Common questions
Does this KATSU include a disc?
No. The bullets say the disc is not included.
What is the spindle?
The bullets claim an M14 shank and a 115 mm blade capacity.
What do UK reviews say about the spindle lock?
More than one UK review says the lock button will not engage, including a buyer who had two units and a return on delivery.
Across 64 amazon.co.uk reviews at 3.9 stars, the DEKOPRO 800 W is a £25.99 corded body whose table omits wattage and voltage. The title says 800 W and 12,000 rpm. Variable speed and a third handle position are claimed, not measured. UK reviews include a switch that stayed on, a fidgety slide, a lock nut that would not undo, and a plug with no earth wire. Those are enough reasons to skip it in this set unless you can inspect the plug and the switch before you keep it.
Pros
Cons
Best for: You can inspect the plug and the switch before you keep it, and you specifically want the claimed third handle position.
Less suitable: A first grinder, or any buy where you cannot check the earth wire and the off action in person.
Specifications
Common questions
Does this DEKOPRO have variable speed?
The bullets claim an adjustable speed function. No rpm range is given, and the wattage field is empty.
What do UK reviews say about the switch?
One UK review says the on button stuck on at first use. Another says the slide is hard to lock and does not feel safe.
Is the plug a UK 13 A plug?
The table does not state the plug. One UK review says the plug has no earth wire and calls it dangerous.
Twelve amazon.co.uk listings were scored from the stored pages and the review notes already on file. There is no laboratory test. Stars and review counts are the listing line. The highest score is the top pick. Best value is the kit with a stated 240 V plate, six discs and a large review count at a mid-set price. One of each. The weights below sum to 100.
Amazon stars and volume
35%The UK listing's star line and review count. A very large count lifts the score. Under 80 reviews caps this block.
Switch, lock and review sentiment
25%UK texts about the slide switch, the spindle lock, burnout, and a disc that keeps turning. A switch that sticks on, or a lock that will not engage, is a deduction.
Spec clarity
20%One disc class, a voltage, an M14 line where stated, and an honest disc-in-box line. Wattage or rpm printed two ways on the same listing caps this block.
Price and a usable box
20%The GBP price against discs, a second guard, a case, or a named-brand warranty mentioned in UK reviews. No disc in the box is a deduction when the job is a first buy.
Buy the disc class, the guard and the plug before you buy a star line. A 115 mm tool is the compact corded size for thin metal and shallow cuts. A disc must be marked at or above the tool's no-load speed. A kit disc is a starter, not a durability claim.
A 115 mm angle grinder is the compact 4½-inch disc class UK merchants still treat as the everyday small grinder. It is lighter than a 125 mm tool, with about 30 mm of published cutting depth, on a standard M14 spindle and a 22.2 mm bore. You buy it for thin steel, bolts, rust, weld dressing, and shallow tile or masonry cuts. A thick slab is a different job: score both faces or hire a larger machine.
A 125 mm disc can sit on the same M14 spindle. HSG17 says the guard is there to stop an oversize wheel. Leave the guard on and match the disc to 115 mm.
Unplug before you press the spindle lock. A lock-on slide is not a dead-man switch, and a switch that sticks on is a reason to stop using the tool.
Read the disc mark for diameter, bore, type and maximum rpm. The disc must be marked at or above the grinder's no-load speed. An old disc does not become safe because the bore fits.
Confirm the guard and the title are 115 mm, then match every disc to that diameter and to the tool's rpm. A 125 mm disc will sit on the same M14 spindle. The guard is there to stop you fitting it. The bore on a standard disc is 22.2 mm. Published cutting depth for this size is about 30 mm, which is enough for thin steel and shallow masonry, not for a 50 mm slab in one pass. Check the plug is BS 1363 13 A and the plate is 230 V or 240 V.
Prefer a side handle, a rotatable guard, and a switch you can work with gloves. Lock-on slides that stick are the common complaint in this class. A slide that stays on, or a spindle lock that will not engage, is a reason to return the tool. Restart protection is a listing claim where it appears. It matters more than 50 extra watts. Treat 650–900 W as a duty hint for occasional DIY, not as a rank. Decide whether you need discs in the box before you compare wattage.
Three typical situations, each with a recommendation from this comparison.
You want starter discs and a stated 240 V plate. The DEWINNER 850 W is about £29.74, with 4.3 from 716 reviews, six discs listed and a restart claim. The brand is unfamiliar and the spindle thread is not stated. Match a replacement disc to 12,000 rpm and 115 mm.
Thin steel, bolts, rust and weld dressing are the job this size is good at. The C P CHANTPOWER 900 W is about £30.54, with five wheels and 4.3 from 556 reviews. UK reviews use it on pipe and rust, and they also say the slide switch is stiff. Voltage is not stated, and rpm is printed two ways.
A 115 mm body is handy for tiles if you add a diamond blade and control the dust. The Bosch UniversalGrind 750-115 is about £44, with 4.7 from 111 reviews and three cutting discs. UK reviews mention tiling. Wattage and rpm are not on the listing table. A 50 mm slab needs both faces scored, or a larger hire tool.
The top pick is the Bosch UniversalGrind 750-115 at about £44, on 4.7 from 111 ratings, with three cutting discs in the carton. UK reviews talk about tiling and a registerable extra warranty. Wattage, voltage and rpm are not stated on the listing table, so the 750 in the name is a label. Best value is the DEWINNER 850 W at about £29.74: 4.3 from 716 ratings, six discs, and 240 V on the table. The spindle thread is not stated. None of these scores is a laboratory test.
Bosch UniversalGrind 750-115
4.7 from 111 ratings, three cutting discs, and UK reviews that mention tiling and a registerable extra warranty, at about £44.
DEWINNER 850 W
About £29.74 for a stated 240 V, 850 W, 12,000 rpm kit with six discs and 4.3 from 716 ratings.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
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 in this comparison. HSE silica limits, HAVS figures and PUWER apply at work. They are not a certificate for a domestic grinder, and they are not a personal exposure limit for a weekend cut.
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the listings. This is not a laboratory test.
