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Best Bosch 125 mm angle grinder

Updated: 22 October 2026

You want one Bosch for 125 mm discs, and the amazon.co.uk stars pull in opposite directions. The GWS 7-125 sits at 4.7 from 22,017 reviews. A 240 V GWS 12-125 sits at 3.4 from eight. A 110 V sibling shows 5.0 from four. Those averages are not the same kind of evidence. This page names the best Bosch 125 mm angle grinder for a stated job, and it names who should skip each listing. Prices and the full table are on the [Bosch angle grinder 125 comparison](/hub/tools/bosch-angle-grinder-125). Decision order, if you have not chosen voltage yet, is the [buying guide](/hub/tools/bosch-angle-grinder-125/sub/bosch-angle-grinder-125-buying-guide). Figures are amazon.co.uk shelves as used for 19 October 2026. Products Compared did not lab-test these tools. Links to Amazon can earn us a commission at no extra cost to you.

You want one Bosch for 125 mm discs, and the amazon.co.uk stars pull in opposite directions. The GWS 7-125 sits at 4.7 from 22,017 reviews. A 240 V GWS 12-125 sits at 3.4 from eight. A 110 V sibling shows 5.0 from four.

Our top picks

Bosch Professional Bosch Professional GWS 7-125

Best overall

Bosch Professional Bosch Professional GWS 7-125
9.2/10about £71.98
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Bosch Professional Bosch Professional GWS 18V-8

Best value

Bosch Professional Bosch Professional GWS 18V-8
8.0/10about £89.44
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Bosch Professional Bosch Professional GWS 12-125 (240 V)

Alternative

Bosch Professional Bosch Professional GWS 12-125 (240 V)
5.4/10about £106.74
View offer
On this page
  1. 1.Default corded pick for most homes
  2. 2.When the GWS 12-125 is the one to step up to
  3. 3.Portable pick when the batteries are already blue
  4. 4.Who should skip each listing

Default corded pick for most homes

For a UK house on a normal ring main, the top pick in this set is the Bosch Professional GWS 7-125 at £71.98. It is the corded 720 W tool with a fixed 11,000 rpm, a stated 125 mm line, and restart protection on the listing. The carton includes the guard, handle, flange, nut and spanner. It does not include a disc, so the first cut still needs a wheel rated for that speed and diameter. At about 2 kg on the amazon specification it is the lighter corded body here, and UK review text often mentions the slim grip and a head that stays usable in tight spots. Bosch’s own UK page describes a 176 mm grip and a flat head on this model. The condition is the plug. Two verified UK reviews report a two-pin plug and an adapter, even though the table says 230 V. If the tool that arrives is not a straightforward BS 1363 fit, do not treat 230 V as the end of the check. There is also no speed dial. Soft materials and a wish to slow the wheel down are outside what this listing claims. Skip the GWS 7-125 if you are on a 110 V transformer, if you want keyless guard adjustment every few minutes, or if you will not look at the plug before you use it. Skip it too if your packs are already blue 18 V and you came here to leave the lead behind.

When the GWS 12-125 is the one to step up to

Choose the 240 V GWS 12-125, model 06013A6170 at £106.74, when you are staying on mains and the 720 W class is the limitation. The amazon table prints 1,250 W and 2.4 kg. The box story adds a keyless protection guard and a plastic clip-on cutting guard, which is the daily difference from the screw-adjust guard reviewers describe on the GWS 7-125. Longer grinding on metal, or a cut where the smaller motor has already bogged down, is the situation that justifies the extra money and the extra weight. Bosch’s UK page for this family talks about 1,200 W and that keyless guard; the amazon watt figure on this ASIN is 1,250 W, so quote the page you are buying from. The limitation is the review file. Eight UK reviews at 3.4 stars are not a track record next to 22,017 on the smaller grinder. You are buying specification and a Bosch order number, not a crowd verdict. No disc is in the included components, and no-load speed is not printed on this ASIN’s table. Skip this listing if you mainly trust review volume, if £35 over the GWS 7-125 is the whole budget, or if the supply on site is 110 V. The 110 V GWS 12-125 is a different ASIN at £101.71. A perfect 5.0 from four reviews does not make it the best home grinder. It is the site tool, and only with the correct transformer.
Bosch Professional Bosch Professional GWS 7-125

Testsieger

Bosch Professional Bosch Professional GWS 7-125
9.2/10about £71.98
View offer

Portable pick when the batteries are already blue

The best value case in this set is the GWS 18V-8 body at £89.44, if you already own compatible Bosch Professional 18 V packs. Stars are 4.7 from 531 reviews, which is a real cordless sample and still far smaller than the GWS 7-125 file. Listed weight is 1.22 kg, the lightest bare tool here, which is the point for overhead brackets or a cut away from the garage socket. The listing states 800 W. Runtime still depends on the pack you fit, and the style line says there is no battery or charger in the box. Two limits travel with that price. Listing copy and one UK review disagree on 115 mm versus 125 mm, and the specification table does not settle it, so confirm the guard before you order discs. A UK review also says there is no quick-release nut; the included change kit is a locking nut and a two-hole spanner. Green DIY batteries are not this platform. Skip the GWS 18V-8 if you would have to buy packs and a charger to make £89.44 true, if you need hours of uninterrupted grinding, or if you want a disc size you can trust from the title alone. In those cases the corded GWS 7-125 is the cleaner purchase, plug check included. How the guard and the disc go together once the tool is in your hand is on how to use a Bosch 125 mm angle grinder, not in this short list.

Who should skip each listing

Skip the GWS 7-125 when the job is a 110 V site or when you need more motor than 720 W for the way you actually lean on the wheel. Skip the 240 V GWS 12-125 when you want the statistical comfort of tens of thousands of UK reviews, or when 2.4 kg and a higher shelf are solving a problem you do not have. Skip the 110 V GWS 12-125 for any home 230 V socket. Skip the GWS 18V-8 when best means a complete kit with a disc and a battery in the same carton. None of these shelves includes a cutting disc, so best does not mean ready to cut on the day the parcel arrives. If your Bosch batteries are green rather than blue, this 125 mm cordless row is the wrong family; start from the parent Bosch angle grinder comparison before you add a body-only price to a pack that will not click in. And if you are not trained to mount abrasive wheels at work, or the tool trips and smokes, the next step is a competent person, not a higher wattage in the basket.

Common questions

Is the GWS 7-125 still the default 125 mm Bosch?
For a home on 230 V, yes, with the plug caveat. It is £71.98, 720 W, 11,000 rpm, and 4.7 from 22,017 amazon.co.uk reviews. It is the default because of that record and the lower shelf, not because it is the most powerful body in the set. Confirm a BS 1363-style plug on arrival.
When is the GWS 12-125 worth the extra money?
When you are on 240 V mains and you want about 1,200 W plus a keyless guard instead of the 720 W GWS 7-125. The 240 V listing is £106.74 and 2.4 kg. It is harder to justify if your cuts are short and the smaller grinder does not bog, because you are paying more for a star line of only eight reviews.
Should I trust 5.0 from four reviews on the 110 V listing?
No. Four reviews can all be positive and still tell you nothing about the next hundred orders. Use that ASIN when you need 110 V and a keyless guard, at £101.71, and judge it as a site tool. Do not promote it to best home grinder on the average alone.
Is the GWS 18V-8 best if I already have batteries?
It is the portable pick if those batteries are blue Professional 18 V packs that fit this body. You still add a disc, and you still check whether the guard you receive is for 115 mm or 125 mm. It is not the best buy if the batteries on the shelf are green POWER FOR ALL.
Who should avoid corded altogether?
Someone whose work is short, away from a socket, and already supported by blue 18 V packs. Even then, long grinding sessions favour a mains lead over a pack that will go flat. If you own no packs, avoiding corded means buying a battery system, not saving money versus the £71.98 GWS 7-125.
Does best mean the disc is included?
No. Included components on these listings cover guards, handles and spanners, not a cutting or grinding disc. The 240 V and 110 V GWS 12-125 rows add a clip-on cutting guard. You still choose a wheel whose diameter and speed match the tool you unpack.

Related pages

Bosch GWS 7-125 vs GWS 12-125

Corded or cordless Bosch angle grinder 125

Bosch angle grinder 125

Bosch 125 mm angle grinder buying guide for the UK

How to use a Bosch 125 mm angle grinder, first cuts

Sources

Public UK sources from the research digest, used for this page in October 2026. Prices, stars and review counts are from the four amazon.co.uk listings captured on 19 October 2026. HSE HSG17 and PUWER apply at work. They are not a certificate for a domestic garage.

  1. HSE, HSG17 Safety in the use of abrasive wheels (retrieved 19 October 2026)
  2. Electrical Safety First, Angle grinders (retrieved 19 October 2026)
  3. Bosch Professional, GWS 7-125 (retrieved 19 October 2026)
  4. Bosch Professional, GWS 12-125 (retrieved 19 October 2026)
  5. Screwfix, Angle grinder buying guide (retrieved 19 October 2026)