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110 V or 230 V angle grinder

Updated: 22 October 2026

The two boxes can both say Bosch GWS 9-115 S, and only the voltage line tells you whether the grinder belongs on a 13 A socket or on a site transformer. A 110 V or 230 V angle grinder is not a power argument. In this amazon.co.uk set, one listing prints 110 V, the 230 V Bosch and both POSENPRO listings print 230 V, and five listings print nothing. This page is that fork. The wider matrix is the [angle grinder with speed control comparison](/hub/tools/angle-grinder-with-speed-control). Products Compared used the raw voltage lines and public UK guidance on 21 October 2026. We did not measure shock voltage.

The two boxes can both say Bosch GWS 9-115 S, and only the voltage line tells you whether the grinder belongs on a 13 A socket or on a site transformer. A 110 V or 230 V angle grinder is not a power argument.

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
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Bosch Professional Bosch GWS 9-115 S 110 V

Alternative

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

Best value

KATSU Tools KATSU 115 mm 750 W
6.3/10about £24.99
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On this page
  1. 1.Same name, two supplies
  2. 2.What 110 V centre-tapped to earth changes
  3. 3.At home, stay on 230 V
  4. 4.Do not invent the missing volts

Same name, two supplies

The domestic listing is Bosch part 0601396171, at £77.00. It prints 230 V, 900 W and 1.66 kg. The site listing is part 0601396161, at £79.99. It prints 110 V, 900 W and 1.75 kg. Both scope lines name a guard, an auxiliary handle and spanners, and neither names a disc. Both amazon files say speed selection and neither prints an rpm band. The 230 V page is 4.6 from 205, with 50 UK blocks. The 110 V page is 4.4 from 22, with five UK blocks, a missing auxiliary handle, and a repeat breakdown. Do not put the 110 V tool on a kitchen socket because the model name matches. Both listings are 900 W. The site reason is the shock path, not a higher wattage. Once the socket is known, the best in this set page is the next stop.

What 110 V centre-tapped to earth changes

HSE’s construction guidance says site tools should be cordless or 110 V centre-tapped to earth, so the voltage to earth does not exceed 55 V. A 230 V tool on a site needs shift checks and a daily RCD test, not the default. The IET describes the same split: about 110 V between the lines, and about 55 V from either line to earth. Voltage is not the power rating, which is why both Bosch rows can say 900 W. CMT describes transformers that take 230 V in and give 110 V centre-tapped out, on yellow BS EN 60309 outlets that do not accept a 230 V plug. Those kVA sizes are that seller’s hardware, not a load measured for a 900 W grinder. The 110 V Bosch belongs on that output. A step-up transformer is not a household trick for running it from a 13 A socket.
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

At home, stay on 230 V

At home you use the 230 V Bosch, part 0601396171, on a 13 A socket, with an RCD if the board has none. You do not buy the £79.99 tool and look for an adapter. Both POSENPRO listings also print 230 V AC, at £33.99. They still share one review block, so 4.2 from 160 is one sample, and that sample includes a switch that died after about 45 seconds. A printed 230 V does not repair a switch. After the plug matches, disc, guard and dial are on the how to use page. One LiunxDromic UK review mentions a moulded UK plug. The spec block on that ASIN still has no voltage line. A review is not a specification.

Do not invent the missing volts

KATSU at £24.99, TOPWAY at £29.99, TEENO at £32.99, LiunxDromic at £44.64 and DEWINNER at £48.99 do not print a voltage. Corded electric is not a voltage. A wattage is not a voltage. Until the listing or the rating plate shows 110 V or 230 V, those five stay off both a site transformer and a confident 13 A claim. The 110 V Bosch remains the only raw file here that prints 110 V. Do not correct a blank with a travel adapter, and do not correct the 110 V Bosch with a step-up on the kitchen worktop.

Common questions

Can the 110 V Bosch go in a kitchen socket?
No. Part 0601396161 prints 110 V. A UK 13 A socket is a 230 V supply. The tool and the socket do not match, and a casual adapter is not the fix. The 110 V grinder belongs on a 110 V centre-tapped transformer of the kind used on site, with yellow outlets that will not take a 230 V plug. The kitchen tool in this pair is part 0601396171.
Which part number is the 230 V one?
0601396171. That is ASIN B07HMJGC89, £77.00, 900 W, 1.66 kg, 4.6 from 205. The 110 V part is 0601396161, ASIN B07HM62K7B, £79.99, 900 W, 1.75 kg, 4.4 from 22. The model name GWS 9-115 S is on both. The part number and the voltage line are what you check before you pay.
Do I need a transformer for the 230 V Bosch at home?
No. Part 0601396171 is the 230 V listing, for a domestic socket. HSE’s 110 V centre-tapped supply is the site arrangement. At home, Electrical Safety First’s mains-grinder advice is the relevant one: a proper plug, and an RCD if the consumer unit does not already provide that protection. A site transformer would be the wrong box for this ASIN.
What if the listing does not print a voltage?
You do not guess. KATSU, TOPWAY, TEENO, DEWINNER and LiunxDromic leave the voltage line empty in this capture. Corded and a wattage do not choose between 110 V and 230 V. Leave those rows out of a site order, and do not describe them as 13 A tools until a spec line or the plate on the tool says 230 V.
Is 110 V less powerful?
Not on these two listings. Both print 900 W. Screwfix’s buying guide says voltage is not the power rating. The 110 V system is about how much voltage remains to earth, about 55 V on a centre-tapped supply, which is an HSE and IET point about shock. It is not a claim that the 110 V Bosch is half the motor.
One Liunx review mentions a UK plug. Is that 230 V?
It is a reviewer’s description of a moulded plug on a mains tool, not a voltage in the spec block. The LiunxDromic listing still does not print 110 V or 230 V. You cannot promote that sentence into the comparison table. The same caution applies to any other blank row. Only a printed voltage line, or the plate on the tool, closes the gap.
What plug colour is the site socket?
Site 110 V outlets in the CMT description are yellow, to BS EN 60309, and they do not accept a 230 V plug. A domestic 13 A plug is a different shape. If the grinder in your hand has a yellow 110 V plug, it is not a candidate for the kitchen wall. If it has a 13 A plug, it is not a candidate for the yellow outlet.

Related pages

Angle grinder with speed control buying guide

Angle grinder with speed control

Best variable speed angle grinder UK for a 13 A plug

How to use a variable speed angle grinder in the UK

Angle grinder speed for polishing pads and wire cups

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)