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Best diamond cutting disc

Updated: 21 October 2026

You already know the job: a run of ceramic wall tiles, a porcelain floor, or paving on a 115 mm angle grinder. The best diamond cutting disc in this amazon.co.uk set is the listing whose rim, diameter and UK reviews match that job. A star average is not a lab result, and a high one still includes chipped porcelain. The [diamond cutting disc comparison](/hub/sanders/diamond-cutting-disc) holds the twelve listings, priced from £6.98 to £19.90 on 19 October 2026. This page names who each strong listing is for, and who should leave it in the basket. We did not cut tile in a lab. A qualifying purchase can earn a commission at no extra cost to you.

You already know the job: a run of ceramic wall tiles, a porcelain floor, or paving on a 115 mm angle grinder.

Our top picks

Bosch Bosch 115 mm ceramic cut, 1 disc

Best overall

Bosch Bosch 115 mm ceramic cut, 1 disc
9.3/10about £6.98
View offer
Tech Traders Tech Traders 115 mm segmented, 3-pack

Best value

Tech Traders Tech Traders 115 mm segmented, 3-pack
9.1/10about £9.79
View offer
EZARC EZARC 115 mm mesh turbo, 2-pack

Rank 3

EZARC EZARC 115 mm mesh turbo, 2-pack
8.4/10about £17.97
View offer
On this page
  1. 1.Ceramic and everyday tile
  2. 2.Porcelain and rectified edges
  3. 3.Brick, block and paving
  4. 4.Who should skip which listing

Ceramic and everyday tile

For glazed ceramic behind a 115 mm guard, Bosch (B004O4KUKS) is the listing this comparison treats as the top pick. On 19 October 2026 it was £6.98 for one disc, 115 mm, 1.6 mm thick, with a 22.23 mm bore, and 4.6 from 5,979 amazon.co.uk reviews. The listing does not state the rim shape. If the tile is porcelain, leave this disc. The checks before the brand are on the diamond cutting disc buying guide.

Porcelain and rectified edges

Porcelain wants a thin turbo or mesh rim, and UK reviews of those rims still mix clean cuts with chips. EZARC (B09KNMBF5K) is the porcelain-labelled two-pack at £17.97, 115 mm, about 1.2 mm, 22.23 mm bore, 4.4 from 1,353 reviews, with a stated maximum of 13,300 rpm. Stored notes include praise for the edge and reports of chips. RDXMAX (B09DJ9FBV9) is £15.99 for two, 4.5 from 3,473. The title says 1.4 mm and an item field also lists 1.2 mm. One review says the disc spun in the flanges. Stop, and do not pack the bore. Anesty (B08QRKMR17) is £18.90 for three 1.2 mm discs, 4.4 from 335 reviews. DT-DIATOOL (B086YLV379) at £19.90 is 180 mm, so a 115 mm guard will not take it. Edge control is on the diamond cutting disc for porcelain page.
Bosch Bosch 115 mm ceramic cut, 1 disc

Testsieger

Bosch Bosch 115 mm ceramic cut, 1 disc
9.3/10about £6.98
View offer

Brick, block and paving

Brick, block, paving and a concrete cill want a segmented rim that clears heat. Tech Traders (B06XFNK6HR) is the best value pick here for that job: £9.79 for three 115 mm segmented discs, 1.9 mm, bore printed as 22.2 mm, 4.5 from 3,103 reviews, stated maximum 13,000 rpm. worksky (B0GYX1S94F) is the thinner-evidence alternative at £9.99 for three, 1.8 mm, 22.23 mm with 20 mm and 16 mm rings, 4.6 from only 22 reviews. Mount Tech Traders for slabs or cills, and use worksky only after the rings match the arbor. Do not take that segmented disc back indoors for a glazed floor tile.

Who should skip which listing

If your only machine is a 115 mm grinder, skip DT-DIATOOL at 180 mm and skip Vearter (B0H414Z5JY), five 76 mm discs on an M14 mandrel at £14.99, item thickness 9.5 mm, with no review line. Skip SANLEETEK (B0CBR3QDPB) at £16.99 if the grinder clamps a disc between flanges. It screws onto an M14 thread, grit 40/50, and the coarse grit is a poor match for a visible porcelain edge. Skip RTDHO (B0GTR1GMHR) at £14.99 if the six-pack is the attraction: 2.4 from eight reviews, and the diamond layer vanished quickly. WojBear (B0H7CFQ2J6) at £11.99 has no review line. LEKOMESH (B0DTY15DTQ) is 4.4 from 133 at £12.99 with no UK review text, and 19,000 rpm is not a speed to aim for.

Common questions

What is the cheapest sensible disc for ceramic tiles?
Bosch (B004O4KUKS) at £6.98 is the cheapest listing here with a large UK review base for ceramic: 4.6 from 5,979 reviews on 19 October 2026. It is one 115 mm disc with a 22.23 mm bore. That price is for glazed ceramic, not for a porcelain slab and not for a six-pack of vacuum-brazed discs. If the tile is porcelain, the saving does not choose the rim for you.
Which disc for 20 mm porcelain on a battery grinder?
Start with a 115 mm mesh turbo that has porcelain reviews. In this set that is EZARC (B09KNMBF5K) at £17.97 or RDXMAX (B09DJ9FBV9) at £15.99, both two-packs. The battery grinder still has to stay at or under the disc mark, and EZARC states 13,300 rpm. Chips still appear in reviews, so a visible mitre may need a wet saw. DT-DIATOOL’s 20 mm mentions belong to a 180 mm disc, which a 115 mm guard will not take.
What is the best three-pack for paving and concrete cills?
Tech Traders (B06XFNK6HR) at £9.79 is the three-pack this comparison treats as best value for masonry: segmented, 115 mm, 4.5 from 3,103 reviews. worksky is also three discs at £9.99, with only 22 reviews, so the larger review base is the reason to prefer Tech Traders on paving or a cill. A segmented rim will chip glaze if you then use it on a bathroom tile.
Should I avoid RTDHO despite the pack size?
If you are choosing on UK evidence, yes. RTDHO (B0GTR1GMHR) was £14.99 with 2.4 from eight reviews, and those reviews say the diamond layer went quickly. Six discs do not repair a short life. It is the only weak star line in the set.
Is DT-DIATOOL worth it if I only have a 115 mm grinder?
No. DT-DIATOOL (B086YLV379) is 180 mm at £19.90. A 115 mm guard will not take it, and taking the guard off is not a way to make it fit. On a 115 mm grinder, stay with EZARC, RDXMAX or Anesty.
When is Bosch enough, and when do I want a mesh turbo?
Bosch is enough when the material is glazed ceramic and you want one inexpensive disc with a large UK review count. A mesh turbo is the move when the tile is porcelain or the edge is rectified, and you can accept that some reviews still report chips. The listing does not state a rim shape, so you do not assume Bosch is a mesh turbo because the stars are high.

Related pages

Turbo or segmented diamond blade

Diamond cutting disc

Diamond cutting disc buying guide: rim, bore, speed

How to use a diamond cutting disc: guard, feed, dust

Diamond cutting disc for porcelain: chips on the edge

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 — PUWER overview (retrieved 19.10.2026)
  2. HSE — HSG17 abrasive wheels (retrieved 19.10.2026)
  3. HSE — silicosis and RCS (retrieved 19.10.2026)
  4. HSE CIS36 — cutting concrete and paving (retrieved 19.10.2026)
  5. HSE ST3 — hand-held rotary cutting of stone (retrieved 19.10.2026)
  6. BSI — BS EN 13236:2019 (retrieved 19.10.2026)
  7. Toolstation — EN 13236 speed sheet (retrieved 19.10.2026)
  8. ATS Diamond Tools — rim types (retrieved 19.10.2026)