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Corded or cordless Bosch angle grinder

Updated: 22 October 2026

You are looking at a Bosch Professional lead grinder under £80 and an 18 V body from about £89, and the cordless price looks close enough to decide the question. It does not, until you see what each shelf includes. A corded or cordless Bosch angle grinder choice in this set is a ready-to-plug tool against a bare body plus the Professional pack you may not own yet. The rows and the GBP prices are the amazon.co.uk listings in the [Bosch Professional angle grinder comparison](/hub/tools/bosch-professional-angle-grinder), taken on 19 October 2026. Peter F. compared those pages with HSE's site-electrical guidance. There was no lab test. A qualifying purchase can earn a commission at no extra cost to you.

You are looking at a Bosch Professional lead grinder under £80 and an 18 V body from about £89, and the cordless price looks close enough to decide the question. It does not, until you see what each shelf includes.

Our top picks

Bosch Professional Bosch GWS 18V-8

Best overall

Bosch Professional Bosch GWS 18V-8
8.9/10about £89.44
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Bosch Professional Bosch GWS 7-115 240 V

Rank 2

Bosch Professional Bosch GWS 7-115 240 V
9.0/10about £67.55
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Bosch Professional Bosch GWS 9-115 S 230 V

Best value

Bosch Professional Bosch GWS 9-115 S 230 V
9.0/10about £77.00
View offer
On this page
  1. 1.What £67 and £89 actually buy
  2. 2.The battery is a second tool
  3. 3.Lead, runtime, and a site
  4. 4.Which row to open

What £67 and £89 actually buy

The 240 V GWS 7-115, B01D9QAG9G, is £67.55. Style, voltage field and scope line say 240 V. You get a 720 W, 11,000 rpm, 1.9 kg tool. You do not get a cutting disc. The 230 V GWS 9-115 S at £77.00 adds speed selection in the bullets, at 900 W. Both plug into a normal UK house supply. Neither needs a battery. The named GWS 18V-8, B0DQV9X3BX, is £89.44 for an 800 W listing at 1.22 kg, part 06019N9000, with 4.7 from 531 ratings. The style says without battery or charger. UK reviews call it enough for short cuts, such as nails. The £89 figure is about £22 above the 240 V lead, and it still needs a pack and a disc.

The battery is a second tool

Bosch Professional's 18 V guidance treats GBA and ProCORE as the packs inside that Professional system, not every battery with 18 V printed on it. The GWS 18V-11 manual recommends at least 4.0 Ah for that family. On the 125 mm L-BOXX GWS 18V-8, a Netherlands review says a Gardena-Bosch universal pack does not fit. The listing does not print that warning. If your only batteries are green or Gardena-style, the corded tool is the one that runs tonight. One UK review on part 06019N4000 at £148.99 puts extra batteries at about £50 to £80. That is one reviewer's range, not a live ProCORE price. A German review prefers ProCORE when a normal pack cuts out under load. An L-BOXX is a case, and the included line still omits the battery.
Bosch Professional Bosch GWS 18V-8

Testsieger

Bosch Professional Bosch GWS 18V-8
8.9/10about £89.44
View offer

Lead, runtime, and a site

A corded GWS 7-115 stays on the socket for as long as the motor and the disc allow. UK reviews are the limit: the housing can be too hot to hold after about 10 to 15 minutes, with a burning smell on some units. You also live with the lead and a socket you trust. A cordless body is the better reach for a short cut away from that socket, which is what the GWS 18V-8 reviews describe. The same reviews say longer work eats a small pack. HSE's HSG141 puts battery tools first on a construction site because they remove the lead, then 110 V centre-tapped supplies. A cordless tool is not a safer disc. The guard, the wheel speed and both hands stay the same. A 230 V lead on a site is a different problem, handled on the 110V Bosch angle grinder page.

Which row to open

Choose the lead when you want one price to include the motor and the supply. For a house socket and short 115 mm work, that is the 240 V GWS 7-115 at £67.55. If the house job needs a slower disc, the 230 V GWS 9-115 S at £77.00 is the best value step. Both still need a disc. The £65.00 GWS 7-115 is not the cheap version while its style and voltage field disagree. Choose the bare 18 V body when the Professional packs are already yours. The named GWS 18V-8 at £89.44 is the short-cut default. Part 06019N4000 at £148.99 states a 6-speed dial. Part 06019N4100 at £135.95 does not. The order is the buying guide. Who each pick is for is the best Bosch Professional angle grinder page.

Common questions

Is the £89 GWS 18V-8 cheaper than the £67 corded tool?
The shelf is not. The named GWS 18V-8 is £89.44 and the 240 V GWS 7-115 is £67.55, so the bare body is already about £22 more before a pack, a charger and a disc. It is the cheaper route only when you already own Bosch Professional packs and a charger. A new pack on top of £89.44 moves it further from the corded price.
What do I still have to buy for a cordless body?
A Bosch Professional pack, a charger if you lack one, and a disc. No cordless style in this set includes a battery or a charger. No scope line includes a cutting disc. The GWS 18V-11 family is the one whose manual asks for at least 4.0 Ah. One UK review puts packs at about £50 to £80, which you should check live rather than add to the tool price as if it were today's figure.
Will my green Bosch 18 V batteries run a blue grinder?
Treat them as a different system until the manual for your part says otherwise. Professional guidance points to GBA and ProCORE. A Netherlands review on the 125 mm L-BOXX GWS 18V-8 says a Gardena-Bosch universal 18 V pack does not fit. The amazon listing does not print that limit. If the packs you own are green DIY or Gardena-style, the corded GWS 7-115 or GWS 9-115 S is the purchase that does not depend on them.
When is a lead the simpler buy?
When you have a house socket, the cuts are close to it, and you do not already own Professional 18 V packs. The 240 V GWS 7-115 at £67.55 is then a complete electrical buy apart from the disc. The 230 V GWS 9-115 S at £77.00 is the simpler buy when you also want speed selection. You still stop if the housing burns.
When does HSE prefer the battery tool?
On a construction site, HSG141 ranks battery tools first because they remove the trailing lead, and 110 V centre-tapped supplies next. That order is about electric shock. It does not make the disc, the guard or the dust any milder. A cordless grinder with no pack in the box is not yet that battery tool.

Related pages

How to use a Bosch angle grinder

Bosch professional angle grinder

110V Bosch angle grinder for a UK site transformer

Best Bosch Professional angle grinder for your job

Bosch Professional angle grinder buying guide order

Sources

Public UK sources used for this page in October 2026. Prices, stars and review counts are from the ten amazon.co.uk listings captured on 19 October 2026. A bare-tool price does not include a battery. PUWER and abrasive-wheel guidance apply at work. They are not a certificate for a domestic grinder. None of these scores is a laboratory test.

  1. HSE, PUWER overview (retrieved 19 October 2026)
  2. HSE, HSG17 Safety in the use of abrasive wheels (retrieved 19 October 2026)
  3. HSE, Electrical equipment (retrieved 19 October 2026)
  4. legislation.gov.uk, Control of Vibration at Work Regulations 2005 (retrieved 19 October 2026)
  5. legislation.gov.uk, Control of Noise at Work Regulations 2005 (retrieved 19 October 2026)
  6. Bosch Professional, X-LOCK (retrieved 19 October 2026)
  7. Bosch Professional, GWS 18V-11 manual (retrieved 19 October 2026)
  8. IET, Reduced low voltage systems (retrieved 19 October 2026)