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Carbide disc or toothed blade on an angle grinder

Updated: October 2026

You are looking at two amazon.co.uk photos that both claim to cut wood at 125 mm. One rim is a rough carbide band. The other is teeth, and the title still says angle grinder. The choice is carbide disc or toothed blade angle grinder, and the answers are not equal. On a grinder, UK product safety tells you not to fit a toothed blade. A 40-tooth blade can still belong on a circular saw. The kept listings are the [125mm wood cutting disc comparison](/hub/saw-accessories/125mm-wood-cutting-disc). Peter F. read the amazon.co.uk files on 16 October 2026. A qualifying purchase can earn a commission at no extra cost to you.

You are looking at two amazon.co.uk photos that both claim to cut wood at 125 mm. One rim is a rough carbide band. The other is teeth, and the title still says angle grinder.

Our top picks

Bosch Bosch Expert Carbide Multi Wheel 125 mm

Best overall

Bosch Bosch Expert Carbide Multi Wheel 125 mm
8.6/10about £15.96
View offer
Oiieco Oiieco carbide wood discs, 2-pack

Alternative

Oiieco Oiieco carbide wood discs, 2-pack
7.1/10about £10.39
View offer
HAWCUT HAWCUT 40T TCT blades, 2-pack

Best value

HAWCUT HAWCUT 40T TCT blades, 2-pack
8.1/10about £7.99
View offer
On this page
  1. 1.What you are looking at
  2. 2.What UK product safety says about teeth on a grinder
  3. 3.When the toothed blade is the correct tool
  4. 4.If the manual does not list the accessory

What you are looking at

A carbide multi-wheel is toothless. The edge is a grit rim, not saw teeth. Bosch Expert, B09417GYWN, is one 125 mm disc at about £15.96 with a 22.23 mm bore. Oiieco is a two-pack at about £10.39. Bosch sells this kind of disc for small angle grinders. That does not mean your manual has allowed it, and the amazon file states no maximum rpm. A 40-tooth blade is a saw blade. HAWCUT is the one whose devices cell says circular saws and does not name an angle grinder. Other toothed listings also name a grinder. Both objects are about 125 mm across and often share a 22.23 mm hole, which is why the photos mix. If the photo shows teeth, it is not a carbide multi-wheel. Who should buy which grit disc is the best 125mm wood cutting disc page.

What UK product safety says about teeth on a grinder

Product safety alert PSA5 covers toothed saw-blade attachments for angle grinders. It tells you not to attach a saw chain or a toothed saw blade. The reason is kickback. A chainsaw-style carving disc is the same family of hazard, not a carbide multi-wheel. A carbide multi-wheel is not the object PSA5 names. If your manual forbids wood discs, the Bosch page does not overrule it. The buying guide puts that manual check before price.
Bosch Bosch Expert Carbide Multi Wheel 125 mm

Testsieger

Bosch Bosch Expert Carbide Multi Wheel 125 mm
8.6/10about £15.96
View offer

When the toothed blade is the correct tool

The 40-tooth blade is the right object when the tool is a circular saw designed for it. HAWCUT says so in the devices cell: circular saws, two blades at about £7.99, a 22.23 mm bore, rings to 20 mm, and a maximum of 12,000 rpm. Reviewers report a clean cut on plywood and MDF, with scorching if they ran the saw too fast. Slowing down is a saw remedy. It is not a reason to move the blade to a grinder. Chersun can belong on a circular saw only, if the arbor matches and the saw stays within 13,000 rpm. The listing also names an angle grinder. Keep the saw half of that sentence. HAWCUT is the wrong buy if you needed a 16 mm ring.

If the manual does not list the accessory

Stop. A silent manual is not a yes. If wood, a carbide multi-wheel, or a saw blade never appears, you do not improvise from an amazon title. You do not remove the guard, and you do not fit a 125 mm disc to a 115 mm body because the bore matches. On an angle grinder, do not fit a toothed blade. Choose a carbide grit disc only if that maker allows a carbide multi-wheel and the guard covers it. Bosch is the named example, with the blank rpm cell left intact. On a compact circular saw, HAWCUT is the listing that stays with circular saws. If the manual is silent, neither branch is open.

Common questions

Are teeth allowed on an angle grinder in the UK?
No. PSA5 tells you not to attach a toothed saw blade or a saw chain to an angle grinder, because of kickback. A title that says for angle grinder on a 40-tooth blade does not cancel that. A carbide grit rim is a different object, and it still needs the manual.
Is a carbide multi-wheel the same warning as a chainsaw carving disc?
No. PSA5 and the chainsaw-disc alert are about teeth and saw chain. A carbide multi-wheel, such as the Bosch Expert rim, has no teeth. Bosch sells that disc for small angle grinders. If your manual does not allow a wood disc, you still do not fit it. The absence of teeth removes the PSA5 combination. It does not remove the manual.
When is a 40-tooth blade the right object?
When the tool is a saw designed for a 125 mm blade at that bore and speed. HAWCUT’s devices cell names circular saws, with rings to 20 mm and a stated maximum of 12,000 rpm, at about £7.99 for two. A 40-tooth blade is the wrong object on an angle grinder, even for a short pallet slat.
Why do listings still say for angle grinder on a toothed blade?
Because the titles are written for people who own a grinder. The Office for Product Safety and Standards has still published PSA5. Treat for angle grinder on a toothed blade as a reason to leave the listing, not as a specification you have been missing.
Does a high star rating change PSA5?
No. Fresilkora is 4.8 from 20 reviews and names an angle grinder. BATIOPV is 4.6 from 90, and most of the written texts are not from the UK. None of those figures amend the alert. Stars can show that buyers were happy with a cut they should not have attempted.

Related pages

How to check bore and maximum rpm

125mm wood cutting disc

Best 125mm wood cutting disc for grinder or saw, UK

125mm wood cutting disc buying guide, checks first

125mm wood cutting disc for nails, not just a bullet

Sources

Sources checked for this comparison; last retrieved on 16 October 2026.

  1. OPSS Product Safety Alert PSA5, toothed blades on angle grinders (retrieved 16 October 2026)
  2. HSE, PUWER overview (retrieved 16 October 2026)
  3. HSE, cutting and sanding wood (retrieved 16 October 2026)
  4. HSE WIS23, wood dust (retrieved 16 October 2026)
  5. Bosch Professional, Carbide Multi Wheel (UK) (retrieved 16 October 2026)
  6. Screwfix, Bosch Expert 125 mm carbide cutting disc (retrieved 16 October 2026)
  7. BSI, BS EN 847-1:2017 scope (retrieved 16 October 2026)
  8. Consumer Rights Act 2015 (retrieved 16 October 2026)