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Best 125 mm metal cutting disc

Updated: 21 October 2026

The best 125 mm metal cutting disc depends on the job: stainless this month, steel every weekend, or pence per disc in a shared workshop. These conditional picks come from the nine listings in the [125 mm metal cutting disc comparison](/hub/sanders/cutting-disc-125-metal), with GBP prices from 19 October 2026. Peter F. read the listings and the UK review notes. There was no lab cut. A qualifying purchase can earn a commission at no extra cost to you. No single disc wins every job. DeWalt’s stainless tin is the top pick for named INOX work, and the page still omits bore and rpm.

The best 125 mm metal cutting disc depends on the job: stainless this month, steel every weekend, or pence per disc in a shared workshop.

Our top picks

DeWalt DeWalt DT42340TZ stainless discs

Best overall

DeWalt DeWalt DT42340TZ stainless discs
9.2/10about £9.99
View offer
Merryland Merryland Craft-Line discs (25)

Best value

Merryland Merryland Craft-Line discs (25)
8.4/10about £10.90
View offer
Stone Reef Stone Reef INOX discs (25)

Rank 3

Stone Reef Stone Reef INOX discs (25)
7.5/10about £12.99
View offer
On this page
  1. 1.Top pick when the job is named stainless
  2. 2.Best value for general steel
  3. 3.Who should skip each line
  4. 4.Price per disc on 19 October 2026

Top pick when the job is named stainless

For a branded stainless ten-pack, where you can read rpm on the ring, DeWalt DT42340TZ (B01E4DFWXS) at £9.99 is the top pick: 125 × 1.2 mm, EN 12413 on the listing, 4.7 from 1,117 reviews, ten discs in a metal box. Bore and maximum rpm are missing from the table. Reviews note guard rub, wobble, and one first-use shatter. The items field says 1 while the title says ten. Open the box and read the ring. If you need Fe-S-Cl ≤ 0.1% printed in the bullets, Stone Reef (B0DMVSF9NW) at £12.99 for 25 is the only row with that claim, at 12,200 rpm. Those bullets also mention grinding. Do not face-grind a cut-off wheel. Stainless labels are on the 125 mm cutting disc for stainless steel page. The check order is the 125 mm metal cutting disc buying guide.

Best value for general steel

For everyday steel, the Merryland Craft-Line 25-pack (B08KM1HM26) at £10.90 is the best value: about 44 pence a disc, with 1.0 mm, 22.23 mm and 12,250 rpm printed. It shows 4.6 from 8,007 reviews, and that UK text matches the 50-pack. Expert-Line 25 (B088QN7YXY) at £14.90 is the steel-named step up. Bravo-Line 25 sits between them at £12.90. Eclipse (B0DZXSCMCD) at £6.55 is the lowest ten-disc price. The tin also names ceramic and glass, and the title bore is 222.23 mm. HAUTMEC (B0DNZ184K8) at £10.99 for ten needs the 125 mm title reconciled with the 115 mm bullet. The Craft-Line 50-pack (B08KM1B7DX) at £20.90 is about 42 pence a disc if you will use fifty wheels on a confirmed 125 mm guard. WojBear (B0G2GBZZQV) at £16.99 for two diamond wheels has seller life claims, a 22 mm bore, a reducer, and no review line.
DeWalt DeWalt DT42340TZ stainless discs

Testsieger

DeWalt DeWalt DT42340TZ stainless discs
9.2/10about £9.99
View offer

Who should skip each line

Skip DeWalt if you will not mount a disc whose page lacks rpm and bore. Skip Stone Reef if you will side-load the wheel. Skip the shared Merryland text as a test of this box alone. Skip HAUTMEC until the 115 mm bullet is reconciled with the 125 mm title. Skip Eclipse as your only stainless disc, and WojBear if you need an EN 12413 date or UK reviews. Skip a 50-pack until diameter and rpm are settled. Mounting is on how to use a 125 mm cutting disc.

Price per disc on 19 October 2026

Prices are the amazon.co.uk figures from 19 October 2026. Per-disc figures are division, not an Amazon unit price. Eclipse at £6.55 for ten is about 66 pence. Craft-Line 25 at £10.90 is about 44 pence, HAUTMEC ten at £10.99 is about £1.10, and DeWalt ten at £9.99 is about £1. Bravo 25 is £12.90, Stone Reef 25 is £12.99 (about 52 pence), and Expert 25 is £14.90. The 50-pack at £20.90 is about 42 pence, the lowest among bonded packs that print bore and rpm. WojBear is £16.99 for two, about £8.50 a wheel. A cheap 50-pack on the wrong diameter is the expensive mistake. When the price ties, prefer a printed rpm and bore, or read the ring.

Common questions

Which Merryland pack should I buy?
Craft-Line 25 at £10.90 suits general steel and prints 1.0 mm, 22.23 mm and 12,250 rpm. Expert-Line 25 at £14.90 names steel. The 50-pack at £20.90 wins unit price if you will use the volume. Bravo-Line 25 at £12.90 sits between them. Match the line to the metal, not to the shared review text.
Is DeWalt worth more than Merryland?
DeWalt at £9.99 buys a named stainless ten-pack, EN 12413 on the page, 1.2 mm, and 4.7 from 1,117 reviews. Merryland wins pence per disc and prints bore and rpm. DeWalt leaves rpm and bore off the table, so you still read the ring.
Should I buy diamond instead of bonded?
Only if you accept WojBear’s unverified life claims and £16.99 for two wheels. Eight bonded listings follow EN 12413-style expiry and the 1.0–1.2 mm band. The diamond listing had no review line to check those life figures against.
What if I only cut stainless occasionally?
A ten-pack DeWalt, or a 25-pack Stone Reef with the printed Fe-S-Cl line, beats a fifty-pack steel disc you might then use on a finish-sensitive stainless job. A disc kept for inox matters more than the largest box.
Why does one review title say 115 mm on a DeWalt tin?
One review title names a 115 × 1.2 mm tin on this 125 mm ASIN. That is review noise, which is why the guard check beats a title keyword. Confirm 125 mm on the disc ring and against your guard.
Do higher star counts mean longer disc life?
Stars mix mount issues, guard rub and technique. The Craft-Line 25-pack and the 50-pack share the same UK review text, at 8,007 and 8,013. Read for shatter and fast-wear comments. A 4.6 does not mean every pack size lasts the same.

Related pages

115 mm or 125 mm cutting disc

125mm metal cutting disc

125mm metal cutting disc buying guide: order of checks

How to use a 125mm cutting disc on an angle grinder

125mm stainless steel cutting disc: reading INOX labels

Sources

Sources taken from the research digest. Prices, stars and review counts are the stored amazon.co.uk listing figures from 19 October 2026.

  1. HSE HSG17 — Safety in the use of abrasive wheels (retrieved 19.10.2026)
  2. HSE — PUWER overview (retrieved 19.10.2026)
  3. FEPA — bonded abrasives safety leaflet (retrieved 19.10.2026)
  4. Abrasives Safety — reinforced bonded wheels on angle grinders (retrieved 19.10.2026)
  5. THSP G712 — cutting-off discs (retrieved 19.10.2026)
  6. Würth UK catalogue — 125 mm cutting discs (retrieved 19.10.2026)
  7. Axis Tools — 125 mm OSA cutting disc (retrieved 19.10.2026)
  8. amazon.co.uk product listings (retrieved 19.10.2026)