The best Ryobi angle grinders, compared.
Top pick: Ryobi R18AG-0 – Bare 18 V body at about £66.65, 115 mm at 7,500 rpm, 4.7 from 4,468 UK reviews, when you already own ONE+ packs. Updated October 2026.
An angle grinder is a handheld tool with a spinning abrasive disc. In the UK you use one for bolts, light steel, rust and short cuts away from a socket. People who already own an 18 V battery platform often buy the bare body and fit a pack they already charge. A sound example states the disc diameter, a speed line you can match to the disc, a guard you can actually fit, and a pack large enough that the tool does not stall. Do not fit a larger disc than the guard, and do not fit a toothed saw blade or a chainsaw disc. Take the battery off before you change a disc or a guard. The charger needs a UK 3-pin plug and fuse. At work, mounting an abrasive wheel needs training. Keep the guard on, and match the disc's rated speed to at least the tool's no-load speed. A vibration figure on a data sheet is an emission, not your daily dose. Noise action values at work are 80 and 85 dB(A).
An angle grinder is a handheld tool with a spinning abrasive disc. In the UK you use one for bolts, light steel, rust and short cuts away from a socket.
12 products checked · 58 hrs invested · +18,600 readers
Swipe for more
1-2 of 3
Personal buying guide
Question 1 of 2
Which disc do you need?
Across 4,468 amazon.co.uk reviews, the Ryobi R18AG-0 is a bare 18 V ONE+ body at about £66.65, and the listing highlight is a 115 mm disc at 7,500 rpm. Reviewers use it for patio grout, fence bolts and light steel, and they like sharing packs with tools they already own. Several call it quieter or smoother than an old corded grinder, and useful where a socket is awkward. The same UK reviews say stone cuts empty a small pack quickly, and they name 4 Ah and 5 Ah when the job is more than a few fixings. The switch will not lock, which they find awkward away from bench height, and the battery housing blocks some angles. One reviewer reports a burnout after about four months of wall chasing, and another could not unlock a disc after the spanner snapped. The printed "4 Horsepower" line sits next to 18.0 V and is not a measured output. In this set it is the top pick when you already own ONE+ packs and the work is occasional 115 mm cutting, and a weak choice if you have no battery at all.
Pros
Cons
Best for: You already own ONE+ packs and you want a 115 mm body for occasional bolts, grout and light steel.
Less suitable: You have no battery yet, you need a 125 mm disc, or you want a switch that locks on.
Specifications
Common questions
Does this listing include a battery?
No. The title says the battery and charger are excluded, and a bullet says it is a bare unit with no batteries supplied.
What disc size does the listing state?
The item highlight says a 115 mm disc and 7,500 rpm.
What is listed in the box?
Included components name 1 x R18AG-0. A disc is not named in that line.
The Ryobi RAG18BL-0 is a bare 125 mm brushless body at about £149.95, listed at 9,200 rpm and 2.1 kg, with 4.7 from 1,875 amazon.co.uk reviews. The bullets name electronic anti-kickback that shuts the tool down when a jam is detected, a paddle switch, and a tool-less guard and nut. Included components name an auxiliary handle, a 2-in-1 housing, a cutting disc and a grinding disc, and the title still excludes the battery and charger. UK reviewers who already had a brushed Ryobi grinder often call this a step up, and they mention car sills, seized bolts and small duct jobs. The supplied cutting disc is a repeated complaint: it sparks and cuts poorly until it is swapped. Reviewers also say it stalls on packs under 5 Ah, that the forward battery adds bulk, and that a 5 Ah pack makes it heavy. One ductworker says it is not a substitute for a 110 V site grinder. The printed 50 W and 2.68 horsepower lines are not treated as motor output, and some review dates may be shared parent text. It suits a 125 mm job with a 5 Ah pack, and it is a lot of money if your work stays on 115 mm discs.
Pros
Cons
Best for: You want the 125 mm brushless listing with a stated jam shutdown, and you will fit a 5 Ah ONE+ pack.
Less suitable: You only need occasional 115 mm work, or you expected a battery at about £149.95.
Specifications
Common questions
Does this listing include a battery?
No. The title says the battery and charger are excluded.
What safety feature does the listing name?
Electronic anti-kickback, which shuts the tool down when a jam is detected. The bullets also name a paddle switch and a tool-less guard and nut.
What discs are in the included list?
Included components name a cutting disc and a grinding disc, plus an auxiliary handle and a 2-in-1 housing.
The Ryobi PBLAG02B is listed on amazon.co.uk at about £87.71 as an 18 V brushless 4-1/2 in. body, with 4.4 from 17 reviews. The written reviews are labelled United States or Canada, so they are not British opinion. Bullets claim up to 11 amps of corded performance and up to 210 cuts per charge, and they say batteries are sold separately. The technical speed line prints 3.5 deg/sec, which is not an rpm figure and is not converted here. In those reviews, people call it easy to use on lighter projects, and one says it drains the battery and is less powerful than a plug-in grinder. One report describes a unit that started when the battery was inserted, without the trigger being touched, and a Canadian reviewer received a used broken unit. Ryobi UK does not list this code in the sources for this comparison, and no UK pack code is named on the page. The title gives 4-1/2 in. only, with no millimetre line. It is a listing you can see on amazon.co.uk, and a weak choice if you want UK reviews, a stated rpm, or a documented match to the packs on the R18AG-0 and the RAG18BL-0.
Pros
Cons
Best for: You have already confirmed this US model code matches the packs and discs you own, and you accept a thin non-UK review file.
Less suitable: You want a UK-reviewed ONE+ body with a millimetre disc size and an rpm line.
Specifications
Common questions
Are the written reviews on this listing from the UK?
No. The written reviews are labelled United States or Canada. The star line is 4.4 from 17.
Does this listing include a battery?
No. A bullet says batteries are sold separately.
What speed does the technical line give?
It prints 3.5 deg/sec. The bullets do not give an rpm figure.
Three amazon.co.uk listings were scored from the stored pages and the review notes already on file. Shelf date 19 October 2026. There is no laboratory test. Stars are the listing line, not a workshop trial. The top pick is the stored award on the R18AG-0. There is no separate best-value award: the lowest shelf price is that same body, and the mid listing is not a UK-reviewed value pick. The weights below sum to 100.
Platform
25%The title has to be an 18 V angle grinder, and you need a pack and charger. All three kept listings exclude them. Ryobi UK says the 18 V system runs 200+ tools. The US code PBLAG02B is not treated as a documented UK pack match.
Disc diameter
25%The R18AG-0 highlight states 115 mm. The RAG18BL-0 title states 125 mm. The PBLAG02B title states 4-1/2 in., with no millimetre line. A larger disc than the guard does not score.
Motor and stated safety
20%Ryobi does not call the R18AG-0 brushless. Its UK page states a two-stage switch that does not lock, and it does not list anti-kickback. The RAG18BL bullets state brushless, a paddle, a tool-less guard and nut, and electronic anti-kickback. A speed line of 3.5 deg/sec is not an rpm.
Pack size
15%Ryobi's R18AG-0 table, checked 21 October 2026, claims up to 17 cuts of 13 mm bar on 2.0 Ah, 46 on 4.0 Ah and 57 on 5.0 Ah. Those counts are not minutes. UK reviews say small packs stall or die quickly, especially on stone.
Price after the pack
15%Bare amazon prices are not the cost of a first tool. The captured shelf is about £66.65, about £87.71 and about £149.95. Ryobi's shop listed the R18AG-0 body at £107.99 and a 4.0 Ah kit at £169.99 the same week. Those shop prices are not the comparison rows. The mid listing is not a UK-reviewed value pick.
Buy the platform and the disc before you buy a star line. All three bodies here are bare 18 V tools. Disc size, the motor line and what the box leaves out are set out in the [angle grinder buying guide](/hub/tools/ryobi-angle-grinder/sub/ryobi-angle-grinder-buying-guide). A UK review sample is not the same thing as a star line whose texts are from the United States or Canada. Printed horsepower and watt lines are not a motor test.
A Ryobi angle grinder in this UK set is an 18 V ONE+ cordless body, not a corded 230 mm machine and not a battery kit. Shoppers who already own ONE+ packs buy the bare tool for bolts, light steel, rust and short cuts away from a socket. Quality here is a stated disc size, a speed line you can trust, a guard you can actually fit, and a pack large enough that the tool does not stall.
All three kept listings exclude the battery and the charger. Ryobi's shop listed the R18AG-0 body at £107.99 and the R18AG-140S 4.0 Ah kit at £169.99 the same week. Those figures are not the amazon rows.
The printed 4 horsepower line on the R18AG-0, and the 50 W and 2.68 horsepower lines on the RAG18BL-0, are not a motor test. The 11 amp line on the PBLAG02B is a bullet claim.
OPSS PSA5 says do not fit a toothed saw blade or a chainsaw disc. A wood line on Ryobi's category FAQ does not override that alert. A 125 mm disc does not belong on the 115 mm body.
You need a ONE+ pack and charger. All three listings exclude them. Ryobi UK says the 18 V system runs 200+ tools. Do not treat PBLAG02B as a documented UK pack match. The R18AG-0 highlight is 115 mm at 7,500 rpm. Ryobi does not call that body brushless, and its UK page states a two-stage switch that does not lock, with no anti-kickback line. The RAG18BL-0 is 125 mm, brushless, 9,200 rpm, with a paddle, a tool-less guard and nut, and electronic anti-kickback. The PBLAG02B title is 4-1/2 in.
Ryobi's R18AG-0 table, checked 21 October 2026, claims up to 17 cuts of 13 mm bar on 2.0 Ah, 46 on 4.0 Ah and 57 on 5.0 Ah. Those counts are not minutes. UK reviews say small packs stall, especially on stone, and the RAG18BL-0 is reported to stall under 5 Ah. The amazon capture of 19 October 2026 is about £66.65, about £87.71 and about £149.95, all without a battery. Ryobi's shop prices that week, £107.99 for the bare R18AG-0 and £169.99 for a 4.0 Ah kit, are not these rows.
Three typical situations, each with a recommendation from this comparison.
You already own ONE+ packs and you can live with a switch that will not lock. The Ryobi R18AG-0 is the top pick at about £66.65, with a 115 mm highlight at 7,500 rpm and 4.7 from 4,468 UK reviews. The battery is not in the box. Stone cuts empty a small pack quickly.
You want the 125 mm brushless listing and a stated jam shutdown. The Ryobi RAG18BL-0 is about £149.95, listed at 9,200 rpm and 2.1 kg, with 4.7 from 1,875 UK reviews. Reviews want a 5 Ah pack and often replace the supplied cutting disc. The battery is still excluded.
The Ryobi PBLAG02B is listed at about £87.71 as an 18 V brushless 4-1/2 in. body, with 4.4 from 17 reviews. Those written reviews are from the United States or Canada, not British opinion. The speed line is 3.5 deg/sec. No UK pack code is named.
The top pick is the Ryobi R18AG-0 at about £66.65: a bare 18 V body, 115 mm at 7,500 rpm, 4.7 from 4,468 amazon.co.uk reviews, for occasional bolts, grout and light steel if you already own ONE+ packs. There is no separate best value. The lowest shelf price is that same body, and the PBLAG02B at about £87.71 is not a UK-reviewed value pick. The RAG18BL-0 at about £149.95 is the 125 mm brushless listing, with anti-kickback stated, and reviews want a 5 Ah pack. None of the three includes a battery. None of these scores is a laboratory test.
Ryobi R18AG-0
Bare 18 V body at about £66.65, 115 mm at 7,500 rpm, 4.7 from 4,468 UK reviews, when you already own ONE+ packs.
No separate best value. The lowest amazon.co.uk price in this set is already the top pick. The listing at about £87.71 is not a UK-reviewed value pick.
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 three amazon.co.uk listings captured on 19 October 2026. Ryobi shop prices that week are not the comparison rows. HSE vibration limits and PUWER apply at work. They are not a certificate for a domestic cut. There is no laboratory test.
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.
