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Best variable speed angle grinder UK

Updated: 22 October 2026

Dearer UK round-ups sit around £167 to £336 and are not this set. If you want the best variable speed angle grinder UK shops mean in that class, you are on the wrong page. This one only scores the nine rows in the [angle grinder with speed control comparison](/hub/tools/angle-grinder-with-speed-control), from the KATSU at £24.99 to the 110 V Bosch at £79.99. Products Compared used the amazon.co.uk prices, star lines and saved review blocks on 21 October 2026. We did not lab-test a motor. A purchase through our links can earn a commission. The top pick is for a 13 A socket. The best value is the dial that states its limit.

Dearer UK round-ups sit around £167 to £336 and are not this set. If you want the best variable speed angle grinder UK shops mean in that class, you are on the wrong page.

Our top picks

Bosch Professional Bosch GWS 9-115 S 230 V

Best overall

Bosch Professional Bosch GWS 9-115 S 230 V
8.6/10about £77.00
View offer
Bosch Professional Bosch GWS 9-115 S 110 V

Alternative

Bosch Professional Bosch GWS 9-115 S 110 V
6.5/10about £79.99
View offer
KATSU Tools KATSU 115 mm 750 W

Best value

KATSU Tools KATSU 115 mm 750 W
6.3/10about £24.99
View offer
On this page
  1. 1.Top pick on a normal socket
  2. 2.Best value is the warning on the label
  3. 3.Do not count the POSENPRO twice
  4. 4.Skip these for a reason

Top pick on a normal socket

On a domestic socket the top pick is the Bosch Professional GWS 9-115 S, part 0601396171, at £77.00. The listing prints 230 V and 900 W, item weight 1.66 kg, and speed selection. It does not print an rpm band. The scope line includes a guard, an auxiliary handle, a backing flange, a locking nut and two-hole spanners, and no cutting disc. The star line is 4.6 from 205. All 50 blocks in the file are from the United Kingdom. They mention the dial, and they also include burnout, oil, and a motor that died after a disc stuck. Skip it if you need discs tonight, or if the supply is 110 V. That case is the 110 V or 230 V page.

Best value is the warning on the label

Best value is the KATSU 115 mm, 750 W, at £24.99. The listing is 3.4 from 14 reviews, and 10 of the 11 saved blocks are from the United Kingdom. The bullet that earns the place says lower speed means lower power, and the low setting is not for heavy-duty work. The printed maximum is 11,000 rpm. M14 is stated. No disc is included, a guard is not named, and the spec block does not print a voltage. One buyer returned it unused because the slide switch was too stiff. One motor gave up after about 3.5 hours of raking mortar. Another unit disintegrated internally after two short uses. You buy it when about £25 is the budget and you have read that warning.
Bosch Professional Bosch GWS 9-115 S 230 V

Testsieger

Bosch Professional Bosch GWS 9-115 S 230 V
8.6/10about £77.00
View offer

Do not count the POSENPRO twice

Both POSENPRO pages show about 4.2 from 160 and £33.99, and the review text matches. It is one block, not two juries. Buyers cut steel trunking and a padlock, and they also report a switch dead after about 45 seconds, a motor that stopped after about an hour, and a motor burnt out on polishing mops. B0BPBR4P93 is the 1100 W, 125 mm, 230 V model, with a tool-free guard in the bullets and no M14 in the spec block. B0GLN17T49 is the 1200 W model. It prints M14 and 230 V, and it also prints 2.51 kg and a 1.8 kg bullet. Count the stars once.

Skip these for a reason

LiunxDromic at £44.64 is 4.5 from 32. Two UK reports say the disc jumped off the axis on switch-off, and that the spindle lock seized on the first disc change. TOPWAY at £29.99 is 3.3 from five, including a head that came away from the housing. TEENO at £32.99 is 4.2 from 143, but only six of the first 50 blocks are from the United Kingdom, and two of those six say the switch would not stay off. The 110 V Bosch is the right Bosch only on a 110 V supply. DEWINNER at £48.99 lists a wood saw blade, which is not a method for cutting timber. None of those rows takes best value from the KATSU.

Common questions

Which listing is the top pick on a 13 A socket?
Bosch part 0601396171, 230 V, 900 W, £77.00, 4.6 from 205, with 50 UK blocks. The scope line has a guard and spanners and no disc. Skip it on a 110 V site, or if you need discs today. The amazon page says speed selection and does not print the manual’s rpm band, so that band is not treated as an amazon specification.
Which is the best value if £77 is too much?
The KATSU at £24.99, if you accept 3.4 from 14 reviews and the line that lower speed means lower power. It is 115 mm and 750 W, with M14 stated and no disc in the box. The POSENPRO star line is higher and only a few pounds more, but it is one shared block with a switch that died in about 45 seconds.
Why not the 4.5-star kit?
LiunxDromic at £44.64 is 4.5 from 32, with a kit and a wool pad in the bullets. A UK report says the disc left the axis on switch-off, and another says the spindle lock seized within about five minutes. The spec block prints no voltage. A review mentioning a moulded UK plug does not fill that gap, and the wood blade is a further reason to pause.
Should I buy both POSENPRO models because both have 160 reviews?
No. The review text matches, and both show 4.2 from 160 at £33.99. The 1200 W page adds M14 and a weight conflict, 2.51 kg against 1.8 kg. The 1100 W page adds a guard bullet and does not state M14. Do not add the counts together.
Is the 110 V Bosch the better Bosch?
Only if your supply is 110 V. Part 0601396161 is £79.99, 1.75 kg, 4.4 from 22. Part 0601396171 is £77.00, 1.66 kg, 4.6 from 205, and prints 230 V. On a 13 A plug the 110 V tool is the wrong object. The five-block file also includes a missing side handle.
Who should skip the TOPWAY?
Anyone about to grind metal. One of three UK reviews says the head came away from the housing. Another says the switch stuck while carving wood. The listing is 3.3 from five, the title disagrees with the 125 mm bullet, and no voltage is printed.
Are the £200 grinders in other guides part of this table?
No. A guide updated on 24 September 2026 discusses a Makita around £209.99 and a Flex around £335.95. Another retailer page shows a Makita around £166.95 with constant speed. Those prices are not these nine ASINs, and those models are not rows here.

Related pages

Angle grinder with speed control buying guide

Polishing with an angle grinder

Angle grinder with speed control

110 V or 230 V angle grinder for a UK socket or site

How to use a variable speed angle grinder in the UK

Sources

Public UK sources from the research digest, used for this page in October 2026. Prices, stars and review counts are from the nine amazon.co.uk listings captured on 21 October 2026. HSE site-voltage guidance and PUWER apply at work. They are not a certificate for a domestic grinder. Restart protection and the 2,800–11,000 rpm band are Bosch manual facts, not amazon bullets.

  1. HSE, HSG17 Safety in the use of abrasive wheels (retrieved 21 October 2026)
  2. HSE, Electrical supplies for construction sites (retrieved 21 October 2026)
  3. BSI, BS EN IEC 62841-2-3:2021+A11:2021 (retrieved 21 October 2026)
  4. FEPA, EN 12413 bonded abrasives safety leaflet (retrieved 21 October 2026)
  5. Electrical Safety First, Angle grinders (retrieved 21 October 2026)
  6. GOV.UK, UKCA and CE marking in Great Britain (retrieved 21 October 2026)
  7. Bosch, GWS 9-115 S manual (retrieved 21 October 2026)
  8. amazon.co.uk listings for the nine ASINs (retrieved 21 October 2026)