The best flex angle grinders, compared.
Top pick: Flex 534016 Best value: Flex L 1100 125 – About £75.00 for a 125 mm tool listed at 1,100 W, with a soft start and a restart lock, and 4.5 from 31. Updated October 2026.
An angle grinder is a hand-held power tool that spins an abrasive disc to cut or grind metal, masonry and tile. You buy one in the UK for a domestic socket or a 110 V site lead. A sound listing states the disc diameter, the supply, and the electronics it actually prints. A common disc is 125 mm. A compact body is about 76 mm, and a large cutter is 230 mm. Those sizes do not share a wheel. A corded tool runs from the mains. A battery body may omit the pack and the charger. Count a restart lock, a soft start, a cut-out or a brake time only when it is printed. A shut-off if the disc jams is not a timed brake. Some tools print a speed dial. Others leave rpm blank. For other brands in that disc class, see [125 mm angle grinders](/hub/tools/angle-grinder-125mm). UK mains are nominally 230 V. Unplug, or remove the pack, before a disc change. Match the disc speed and diameter to the tool, and do not fit a toothed blade.
An angle grinder is a hand-held power tool that spins an abrasive disc to cut or grind metal, masonry and tile. You buy one in the UK for a domestic socket or a 110 V site lead.
22 products checked · 61 hrs invested · +17,300 readers
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Personal buying guide
Question 1 of 2
Where will you use it?
Flex order 534016 is the variable-speed partner to 534017: 2,000 W, 125 mm, 230 V, 50/60 Hz and a 4 m cable, at a saved price of about £286.76. A bullet sets the speed at 3,000–11,000 rpm, the maximum-speed cell says 11,000 rpm, and another bullet adds an LED speed display. The listing also states a mechanical brake with standstill in 3.5 seconds, anti-kickback, a restart lock, a brushless motor, constant electronics, overload protection, a lockable slide switch and a SoftVib handle. Item weight is 2.75 kg and the size cell is 35 × 7.5 × 10.5 cm. The amazon.co.uk line is 5.0 from one review, tagged Germany, which says even screed grinding is no problem and does not name a fault. That single comment is not a UK sample and it does not test the 3.5-second brake. Soft start is not in these bullets, unlike order 534017, and the style cell says Streetwear, which is a listing error rather than a feature.
Pros
Cons
Best for: A 125 mm corded Flex when you want both a printed speed range and a stated 3.5-second brake.
Less suitable: A tight budget, a 76 mm cordless job, or anyone who wants more than a single non-UK comment.
Specifications
Common questions
What speed range does the listing print?
A bullet says 3,000 to 11,000 rpm. The maximum-speed cell says 11,000 rpm. A bullet also says an LED speed display.
What brake time is stated?
A bullet says standstill in 3.5 seconds, plus anti-kickback and a restart lock.
What voltage and weight are printed?
The title says 230 V and a 4 m cable. Item weight is 2.75 kg. The saved price is about £286.76.
The Flex LBE 76 12-EC C is a 12 V brushless mini grinder for a 76 mm disc, with a bullet range of 5,000–20,000 rpm and a maximum-speed cell of 20,000 rpm. The saved price is about £136.44, and the amazon.co.uk line is 5.0 from one review, tagged Germany. That reviewer says it is more versatile than the large tools and that the extra price against other 12 V brand tools is worth it, and they do not name a fault. The included-components row says Battery angle grinder and does not name a pack capacity or a charger, while the bullets add starter discs, a belt clip and a cut-off hood. The maker's UK page says pack and charger are not in that delivery. The title and a weight bullet say 0.85 kg, and the item-weight cell says 1.42 kg, so the listing does not settle the mass. A grip bullet says 140 mm circumference, and the title size is 235 × 75 × 120 mm. Best-sellers rank places the ASIN under Belt Sanders, which is the wrong aisle for an angle grinder.
Pros
Cons
Best for: Tight cuts and light grinding where a 76 mm 12 V body fits, and you already own a matching 12 V pack.
Less suitable: 125 mm discs, long grinding sessions, or a purchase that must include a named battery and charger.
Specifications
Common questions
Is a battery included?
The included-components row says Battery angle grinder. It does not name a pack size or a charger. The maker's UK page says pack and charger are not in that delivery.
What speed does the listing print?
A bullet says 5,000 to 20,000 rpm. The maximum-speed cell says 20,000 rpm.
What disc class is this?
The model in the title is LBE 76. The bullets include a cut-off and roughing disc starter kit. A 125 mm disc does not fit.
The Flex L 1100 125 is a corded 125 mm grinder listed at 1,100 W, with an amazon.co.uk Customer Reviews line of 4.5 from 31 and a saved price of about £75.00. The bullets name a soft start, a reset lock after a power cut, a spindle lock, a lockable slider, an inclined side handle and a tool-less adjustable guard. Voltage and no-load speed are absent from the listing, so it does not confirm a 230 V supply or a disc speed rating. The item-weight cell says 3.16 kg, and one Germany review calls it powerful but very heavy and almost only usable with two hands. Several short reviews tagged Germany or Italy say it is well made, and one tile-layer says they use a grinder every day. One Germany review says it failed after three weeks of grinding, with a smell and sparks from the housing. The star line is the UK page aggregate; the written comments are not a UK sample. It is the best value when the lowest saved price in this set matters and you already know the supply voltage.
Pros
Cons
Best for: A 125 mm mains grind or cut where the lowest saved price in this set matters, and you already know the supply voltage.
Less suitable: One-handed work, or a job that needs a printed speed, a stated brake time, or a 230 V row on the listing.
Specifications
Common questions
What disc size does the listing state?
125 mm, in the title. The order number is 532609.
Does the listing state a restart lock?
Yes. A bullet says a reset lock after power outages, plus soft start and a spindle lock.
What is the saved price and the review line?
About £75.00. The Customer Reviews line is 4.5 from 31. The written comments are tagged Italy or Germany.
The Flex L 13-10 125-EC is listed at 1,300 W and 10,000 rpm for a 125 mm disc, at a saved price of about £241.26. The amazon.co.uk line is 4.5 from eight reviews, and the four bodies in the notes are tagged Germany. The power-source cell says ac, and voltage is not stated. The title contains 125-EC, but the bullets do not say brushless; they say value for money, easy to use, and durable and design. One long Germany review describes a slim body, about 10 mm narrower than a Bosch GWS 9-125, with soft start, kickback protection, a long cable and a usable guard adjustment. Those points are that reviewer's description, not bullets on this listing. The same review says the switch goes stiff once fine dust from stone, concrete or plaster gets in, and that there is no speed setting. Another review, written in English and still tagged Germany, says the tool stopped after two days when the dust filters were blown out and refitted, two small wires blocked the filter seat, the maker did not reply for a month, and Amazon refused the warranty as improper handling.
Pros
Cons
Best for: A compact 125 mm corded body if you accept reviewer-reported electronics rather than bullets, and you will leave the dust filters alone.
Less suitable: Anyone who needs a printed 230 V row, a speed dial or a brake time, or who plans to blow out the filters.
Specifications
Common questions
Do the bullets say brushless?
No. The title contains 125-EC. The bullets say value for money, easy to use, and durable and design.
What power and speed are in the spec cells?
1,300 W and 10,000 rpm. The power-source cell says ac. Voltage is not stated.
What do the size and origin cells say?
20 × 20 × 20 cm and 2 kg. Country of origin says United Kingdom. The included line says Power tools.
The Flex L 12-11 125 is a corded 125 mm grinder with 230 V, 1,200 W in, 700 W out and 11,500 rpm printed on the listing, at a saved price of about £166.04. The amazon.co.uk Customer Reviews line is 4.4 from 28. Bullets name a soft start, a restart lock, temperature monitoring, CDC constant electronics, and a cut-out that turns the motor off if the disc blocks. No standstill time is printed, so that cut-out is not a 3.5-second brake. The included line says Angle Grinder and does not name a disc, a guard or a handle. Reviews in the notes are tagged Germany: one calls it the genuine article, one praises a longer cable, one says it is well made and powerful, and one says the quality is not the best for a brand tool and the switch is not outstanding. One review says it stopped starting after a year and the seller repaired it. The size cell reads 50 × 50 × 28 cm while the item weight says 2 kg, so those dimensions sit as a cell rather than a measured body. It is the top pick when you want the printed speed and the cut-out on a stated 230 V supply.
Pros
Cons
Best for: A 125 mm corded Flex on a stated 230 V supply, when you want the printed speed and the cut-out.
Less suitable: A job that needs a speed dial or a 3.5-second brake, or a box line that names a disc and a guard.
Specifications
Common questions
What voltage and disc size are printed?
230 V and 125 mm. Input is 1,200 W and output is 700 W. No-load speed is 11,500 rpm.
Does the listing state a brake time?
No standstill time is printed. A bullet says the motor turns off if the disc blocks.
What does the size cell say?
50 × 50 × 28 cm. Item weight is 2 kg. The included line says Angle Grinder.
Flex order 534017 is a corded 125 mm grinder listed at 2,000 W, 230 V, 50/60 Hz and a 4 m cable, at a saved price of about £273.36. Bullets name a mechanical brake with standstill in 3.5 seconds, anti-kickback, a restart lock, a soft start, a brushless motor, constant electronics, temperature monitoring and a SoftVib handle. No no-load speed is printed, so this listing cannot be lined up with the 11,500 rpm on the L 12-11 125. The included line is one grinder and does not name a disc or a guard. The item-weight cell says 100 g, which is not a credible mass for a 2,000 W 125 mm grinder, and the horsepower cell simply says 2000. There is no Customer Reviews line and no review bodies, so there is no star rating and no owner report of the brake. The 2,000 W figure is the stated input on a 125 mm tool, not a reason to fit a larger disc.
Pros
Cons
Best for: A 125 mm 230 V grinder where the listing must state a 3.5-second brake, and you do not need a printed speed.
Less suitable: A first Flex if you want owner reviews, a printed rpm, or a believable weight cell.
Specifications
Common questions
What brake time does the listing state?
A bullet says a mechanical brake with standstill in 3.5 seconds, plus anti-kickback.
Is a speed dial printed?
No. The title states 2,000 W, 125 mm, 230 V and a 4 m cable. No rpm row is in the listing.
What does the item-weight cell say?
100 g. There is no Customer Reviews line. The saved price is about £273.36.
Six amazon.co.uk listings were scored from the stored pages and the review notes already on file. Shelf date 21 October 2026. There is no laboratory test. Stars are the Customer Reviews line on the UK page. Written comments in this set are tagged Germany or Italy, and that geography is noted rather than scored twice. The highest score is the top pick. The best checklist-points per pound, after that badge is assigned, is the best value. One of each. The weights below sum to 100.
Review signal
35%Stars out of five, scaled by how many reviews sit on the line. Thirty-one reviews, the largest count in this set, is full confidence. A missing Customer Reviews line scores 0. A high star line with one comment is not a UK test.
Printed specification
35%Seven checks, five points each: disc class, mains or battery voltage, input watts or brushless on a cordless body, no-load speed or a range, a restart lock, a brake time or an anti-kickback cut-out, and soft start or variable speed. EC in a title does not count as brushless. A manufacturer sheet does not fill an empty amazon cell.
Price-performance
20%Checklist points divided by the saved GBP price, then scaled so the best ratio in this set scores 20. This block picks the best value. It is not a claim that the lowest saved price is the cheapest grinder on the market.
Listing reliability
10%Deductions from the same method note: a dead tool, sparks from the housing, or a refused warranty; a no-start after a year; zero or one review; two to nine reviews; and a cell a buyer could mistake for the tool, including 100 g, a 50 cm cube as the only size, or two weights on one listing.
Buy the order number, the disc class and the printed electronics before you buy a star line. A restart lock, a soft start, a cut-out or a brake time counts only when the listing prints it. A written review tagged Germany or Italy is not a UK sample. About £75.00 is the lowest saved price in this set, not the cheapest grinder on the market.
A flex angle grinder in this comparison is a hand-held grinder from that maker, not every amazon.co.uk title that uses the word. Quality is a matching order number, a stated disc diameter, and electronics the listing prints. The Customer Reviews line is listing arithmetic on the UK page. Written comments in this set are tagged Germany or Italy, so they are not a UK sample. Disc class comes first. Five saved listings are 125 mm. The LBE 76 12-EC C is 76 mm, so a 125 mm disc does not fit it.
Orders 534016 and 534017 are 2,000 W and still 125 mm. A 230 mm cutter is a different disc class, and it is not in this set.
The LBE 76 is a 76 mm body. A 125 mm disc does not fit. The included line also does not name a battery pack or a charger.
Order 534017's item-weight cell says 100 g. The L 12-11 size cell reads 50 × 50 × 28 cm. The L 13-10 size cell is a 20 cm cube. The mini lists both 0.85 kg and 1.42 kg. Do not treat those cells as a measured body.
Disc class decides the wheel. Five listings are 125 mm. The LBE 76 is 76 mm, so the wheels do not interchange. None of these ASINs is 230 mm. Supply moves with that split. The five 125 mm tools are corded. The mini is a 12 V body, and the included line does not name a pack. The maker's UK page says the pack and charger are not in that delivery. UK mains are nominally 230 V. A site often wants 110 V through a transformer. None of these six is a 110 V tool.
Count a restart lock, a soft start, anti-kickback or a brake time only when the listing prints it. A motor that switches off if the disc blocks is not a timed brake. The L 12-11 125 prints that cut-out, plus 11,500 rpm, a soft start and a restart lock, and it does not print a standstill time. Orders 534016 and 534017 print standstill in 3.5 seconds. Only 534016 prints a dial, 3,000–11,000 rpm, with an LED display. The mini prints 5,000–20,000 rpm.
Three typical situations, each with a recommendation from this comparison.
You want a 125 mm grinder near a household socket and the lowest saved price in this set. The Flex L 1100 125 is the best value at about £75.00, with 1,100 W, a soft start, a restart lock and 4.5 from 31. Voltage and rpm are not printed, and the weight cell says 3.16 kg.
You want 230 V, a printed speed and a motor cut-out, still on a 125 mm disc. The Flex L 12-11 125 is the top pick at about £166.04: 1,200 W in, 700 W out, 11,500 rpm, and 4.4 from 28. No standstill time is printed.
You already own a matching 12 V pack and you need short cuts away from a socket. The Flex LBE 76 12-EC C is a 76 mm brushless body at about £136.44, with 5,000–20,000 rpm. The included line does not name a pack or a charger.
The top pick is the Flex L 12-11 125 at about £166.04, with 230 V, 11,500 rpm, a motor cut-out if the disc blocks, and 4.4 from 28. The best value is the Flex L 1100 125 at about £75.00, the best checklist-points per pound in this set, with a soft start and a restart lock and without a printed voltage or speed. Order 534016 adds a 3,000–11,000 rpm dial and a stated 3.5-second brake at about £286.76, on one review. The LBE 76 is a 76 mm 12 V body, not a 125 mm disc. None of these scores is a laboratory test, and the written reviews are tagged Germany or Italy.
Flex L 1100 125
About £75.00 for a 125 mm tool listed at 1,100 W, with a soft start and a restart lock, and 4.5 from 31.
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 sources from the research digest, used for this page in October 2026. Prices, stars and review counts are from the six amazon.co.uk listings captured on 21 October 2026. A manufacturer page does not fill an empty amazon cell. PUWER 1998 applies at work. It is not a certificate for a domestic grinder.
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.
