The best diamond cutting discs, compared.
Top pick: Bosch 115 mm ceramic cut, 1 disc – 4.6 from 5,979 reviews at £6.98, a 115 mm ceramic disc with a 1.6 mm kerf, and UK reviews of floor tiles, metro tiles and socket cut-outs. Porcelain still needs a slow feed, and rpm is not printed. Best value: Tech Traders 115 mm segmented, 3-pack – Three segmented 115 mm discs at £9.79, 4.5 from 3,103 reviews, with 13,000 rpm printed. UK reviews cover cills, paving and grout. The rim chips a glazed edge. Updated October 2026.
A diamond cutting disc is a steel wheel with a diamond rim. On a UK angle grinder or a small tile saw it cuts tile, porcelain, brick and concrete. A thin turbo or mesh rim is the porcelain compromise. A segmented rim clears heat on brick, block, paving and concrete, and it chips glaze. Use the lower of the disc’s stated maximum speed and the speed on the grinder plate. Stars cluster at 4.4 to 4.6, apart from one pack at 2.4 from eight reviews. Rim, bore and diameter are set out in the [diamond cutting disc buying guide](/hub/sanders/diamond-cutting-disc/sub/diamond-cutting-disc-buying-guide). Most are 115 mm with a 22.23 mm bore.
A diamond cutting disc is a steel wheel with a diamond rim. On a UK angle grinder or a small tile saw it cuts tile, porcelain, brick and concrete. A thin turbo or mesh rim is the porcelain compromise.
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Personal buying guide
Question 1 of 2
What are you cutting?
The Bosch 2608602200 is one 115 mm ceramic cut disc with a 22.23 mm bore and a 1.6 mm kerf, listed at £6.98 on amazon.co.uk. Across 5,979 reviews it sits at 4.6, and the stored sample of 50 texts is mostly thick floor tiles, metro tiles and socket cut-outs. Reviewers often get through ceramic without chipping when the feed stays slow. Several also cut porcelain, although the listing is aimed at hard ceramic and marble. A maximum rpm is not printed, so you still have to stay under the speed on your grinder plate. It is a single disc, and it dulls once a long run moves onto very hard porcelain. In this set it is the top pick for everyday ceramic on a 115 mm grinder, with that porcelain limit left in view.
Pros
Cons
Best for: Ceramic floor tiles, metro tiles and socket cut-outs on a 115 mm grinder, when you want one cheap disc and a large UK review file.
Less suitable: A long run of very hard or 20 mm porcelain, or a job that needs spare discs in the box.
Specifications
Common questions
Which grinder does this Bosch disc fit?
The listing is a 115 mm ceramic cut disc with a 22.23 mm bore for small angle grinders. Maximum rpm is not printed on the listing.
Can it cut porcelain?
The listing targets hard ceramic tiles and marble. Several UK reviews also cut porcelain, but this is not a dedicated mesh turbo blade.
Is an EN 13236 mark printed?
No. The listing does not show a BS EN 13236 mark.
The worksky pack is three segmented 115 mm discs at £9.99, with a 1.8 mm kerf and a 22.23 mm bore plus reducer rings. Amazon.co.uk shows 4.6 from 22 reviews, and the stored review notes hold 19 texts, several of them empty star lines. The comments that do describe a cut mention concrete slabs, posts and site work, and the listing says wet or dry. A maximum rpm is not printed. A segmented rim is the wrong edge if you need a chip-free glaze. The star average looks high beside Bosch, and the sample is too small to treat this pack as the masonry default.
Pros
Cons
Best for: A spare segmented pack for occasional concrete or site cuts, if you accept a very small review file.
Less suitable: Anyone choosing a masonry disc from stars alone, or a glazed tile edge.
Specifications
Common questions
What size is the worksky disc?
115 mm segmented discs, three in the pack, with a 1.8 mm kerf. The bore is 22.23 mm and reducer rings are in the box. A maximum rpm is not printed.
What materials does the listing name?
Marble and concrete, with tiles mentioned in the review notes. The listing says wet or dry cutting. Written comments describe concrete slabs and posts.
Is a safety standard printed?
No. The listing does not show a BS EN 13236 mark. The amazon.co.uk line is 4.6 from 22 reviews, and several of the stored texts are empty star lines.
The RDXMAX pack is two 115 mm turbo mesh discs at £15.99, with a 22.23 mm bore. The title says 1.4 mm and the item field also lists 1.2 mm, and the bullets state a 7 mm segment height. Across 3,473 amazon.co.uk reviews it sits at 4.5. UK reviewers cut thick porcelain floor tiles, bathroom tiles, garden slabs and lintel channels, and several call the cut clean for the price. The same file says the thickest porcelain still chips, and one reviewer found the disc spun in the flanges. A maximum rpm is not printed, so you check the clamp and the grinder plate before the first pass.
Pros
Cons
Best for: Thick porcelain and mixed site cuts on a 115 mm grinder, if you check that the flanges actually clamp the disc.
Less suitable: A job where you need one agreed kerf figure, or a disc you will force into a tight bore.
Specifications
Common questions
What size is the RDXMAX disc?
115 mm, with a 22.23 mm bore. The title says 1.4 mm and the item field also lists 1.2 mm. The bullets state a 7 mm segment height. A maximum rpm is not printed.
What materials does the listing name?
Porcelain, granite, marble and stone, for dry or wet cutting. The listing also names Bosch, DeWalt and Makita grinders.
Is a safety standard printed?
No. The listing does not show a BS EN 13236 mark. One UK review says the disc spun in the flanges, so check the clamp before the first pass.
The Tech Traders pack is three segmented 115 mm discs at £9.79, with a 1.9 mm kerf, a 22.2 mm bore on the listing and a 13,000 rpm maximum. Across 3,103 amazon.co.uk reviews it sits at 4.5. UK reviewers describe many cuts in concrete window cills on one disc, plus paving slabs, decorative stone and patio grout. One buyer found the discs wore faster than a previous set on hard paving. A segmented rim chips glazed tile if you put it on a show edge. In this set it is the best value for brick, block, paving and cills, and a poor choice when the glaze has to stay intact.
Pros
Cons
Best for: Concrete cills, paving, brick and grout removal on a 115 mm grinder, when you want spare discs in the box.
Less suitable: Porcelain or glazed ceramic where the visible edge has to stay chip-free.
Specifications
Common questions
What job is the Tech Traders pack for?
Three segmented 115 mm discs aimed at concrete, paving and masonry on an angle grinder with a 22.2 mm bore.
What maximum speed is stated?
13,000 rpm maximum rotational speed is in the technical fields.
Is it for porcelain tiles?
The listing centres on concrete. UK reviews use it on paving and cills; a segmented rim can chip glazed edges.
The EZARC 80761153 is two 115 mm mesh turbo discs at £17.97, with a 1.2 mm kerf, a 10 mm segment height and a stated 13,300 rpm maximum. Across 1,353 amazon.co.uk reviews it sits at 4.4. UK reviewers describe clean cuts on large-format and rectified porcelain when the feed is slow, and one timed job cut 20 mm porcelain on a Milwaukee battery grinder without chipping. The same file includes severe chipping on brittle tiles even with water. Reviewers call the disc delicate next to a thicker masonry blade. It suits a 115 mm guard when the edge has to stay tidy and you will not rush the pass.
Pros
Cons
Best for: Rectified or 20 mm porcelain on a 115 mm grinder or tile saw, if you can keep the feed slow.
Less suitable: A rushed cut on brittle glaze, or a long masonry run where a segmented disc clears heat better.
Specifications
Common questions
What bore does the EZARC 115 mm disc use?
The listing specifies a 22.23 mm arbor for tile saws and angle grinders, with a 1.2 mm segment thickness and 13,300 rpm maximum.
Is it for wet or dry cutting?
The listing says universal dry or wet cutting on porcelain, ceramic, granite and marble.
How many discs are in the box?
Two 115 mm mesh turbo discs are in the set named on the listing.
The DT-DIATOOL disc is one 180 mm mesh turbo wheel at £19.90, the highest shelf price in this set, with a 1.7 mm kerf, a 10 mm segment height and a 22.23 mm bore. A 22.23–16 mm washer is in the box, and you remove it on a 22.23 mm arbor. Across 477 amazon.co.uk reviews it sits at 4.4. UK reviewers cut 20 mm porcelain slabs on a DeWalt circular saw with a guide and mention easy porcelain cuts, and at least one buyer came back for a second disc. One disc broke immediately. A maximum rpm is not printed. It will not fit a 115 mm guard, so it only belongs on a machine sized for 180 mm.
Pros
Cons
Best for: 20 mm porcelain on a 180 mm grinder or a circular saw that can take this diameter, with the washer matched to the arbor.
Less suitable: A 115 mm angle grinder, or anyone who only owns a 115 mm guard.
Specifications
Common questions
Will this fit a 115 mm angle grinder guard?
No. This is a 180 mm disc. It needs a grinder and guard sized for 180 mm wheels.
What is the bore size?
22.23 mm with a 22.23–16 mm washer supplied. Remove the washer if you only use a 22.23 mm arbor.
What materials are named?
Porcelain, granite, marble and ceramic, for dry or wet cutting per the listing.
The Anesty set is three 115 mm mesh turbo discs at £18.90, with a 1.2 mm kerf, a 10 mm segment height and a 22.23 mm bore. Across 335 amazon.co.uk reviews it sits at 4.4. UK reviewers report clean porcelain cuts with few chips, a wet cut on Indian sandstone slabs, and enough life to finish a porcelain tiling job. One disc broke after an awkward drop, and the reviewer was not sure it was still new. Life on wall tiles was still unknown after limited use in that file. A maximum rpm is not printed. You pay near the top of this set for three thin discs, and a drop is enough to end one of them.
Pros
Cons
Best for: A porcelain or stone job on a 115 mm grinder or a wet stone saw, when you want three thin discs and can store them so they do not get dropped.
Less suitable: A tight budget, or a rough site where discs get knocked before they are worn out.
Specifications
Common questions
What size is the Anesty disc?
115 mm, with a 22.23 mm bore, a 1.2 mm kerf and a stated 10 mm segment height. The set is three discs at £18.90. A maximum rpm is not printed.
What materials does the listing name?
Granite, marble, stone, ceramics and porcelain tiles. UK reviews mention porcelain with few chips, and a wet cut on Indian sandstone.
Is a safety standard printed?
No. The listing does not show a BS EN 13236 mark. One disc broke after a drop, so do not fit a disc that has been knocked.
The LEKOMESH pack is two 115 mm vacuum-brazed discs at £12.99, with a 1.6 mm kerf. The listing states 22.23 mm and 15.875 mm arbors and mentions an M14 machine, and it states a 19,000 rpm maximum beside a recommended 11,000 rpm. Amazon.co.uk shows 4.4 from 133 reviews. The stored notes have no United Kingdom review text, so that average is not British opinion you can read. A supplier table labelled against EN 13236 puts a 115 mm class speed near 13,200 rpm at 80 m/s, which is why 19,000 rpm is not a target on a small grinder. You can see the price and the bore lines, and you cannot see how a UK buyer got on with the edge.
Pros
Cons
Best for: Only if you already accept a two-pack with no UK review text and you will run at the recommended 11,000 rpm, not the stated maximum.
Less suitable: Anyone who needs UK review evidence, or who might set the grinder toward 19,000 rpm.
Specifications
Common questions
What size is the LEKOMESH disc?
Two 115 mm discs with a 1.6 mm kerf. The listing states 22.23 mm and 15.875 mm arbors and also mentions an M14 machine, so read the mount before you order.
What materials does the listing name?
Stone, marble, granite, glass and tile. There is no United Kingdom review text in the stored notes, so that materials line is the listing, not a UK job report.
Is a safety standard printed?
No. The listing does not show a BS EN 13236 mark. It states a 19,000 rpm maximum and a recommended 11,000 rpm. Do not treat 19,000 rpm as a target on a 115 mm grinder.
The SANLEETEK disc is a 115 mm electroplated wheel at £16.99 that screws onto an M14 thread instead of clamping in a 22.23 mm bore. Diamond is plated on both sides at grit 40/50, the listing states a 2.5 mm diamond thickness, a recommended 8,000 rpm and a 13,200 rpm maximum. Amazon.co.uk shows 4.4 from 105 reviews, and the stored notes are nine texts. Those texts praise the M14 mount, glaze removal before tile-on-tile work, and one dry cut of 20 mm outdoor porcelain. A tiler found it chipped badly and went back to a branded blade. Coarse grit throws heavy dust when you grind. It is a cut-and-grind disc for an M14 spindle, not a fine rim for a show edge.
Pros
Cons
Best for: An M14 grinder when you need to cut and also grind glaze off before tile-on-tile work.
Less suitable: A flange-mounted 22.23 mm arbor, or a visible porcelain edge that has to stay fine.
Specifications
Common questions
How does the SANLEETEK disc mount?
It uses an M14 thread on the angle grinder rather than clamping between flanges on a plain 22.23 mm bore.
What speed limits are listed?
Recommended 8,000 rpm and maximum 13,200 rpm appear in the listing bullets.
Can it grind as well as cut?
The listing describes electroplated diamond on both sides for cutting and grinding at grit 40/50.
The RTDHO set is six 115 mm vacuum-brazed discs with cooling holes at £14.99, a 1.2 mm kerf and a 22.23 mm bore, at 590 g for the pack. Amazon.co.uk shows 2.4 from eight reviews, the lowest line in this set, and the stored notes are five texts. Those UK reviews say the diamond coating was gone after a short cut, that the disc stopped cutting, and that it struggled on the first porcelain tile. One review puts the useful cut at roughly six inches. A maximum rpm is not printed. Six discs in the box do not help if each one loses the diamond layer that quickly.
Pros
Cons
Best for: No clear job in this set. The pack size is the only attraction, and the UK reviews do not support it.
Less suitable: Porcelain, ceramic or any cut where you need the diamond layer to last past the first tile.
Specifications
Common questions
How many discs are in the RTDHO pack?
Six 115 mm vacuum-brazed discs with a 22.23 mm arbor hole.
What do UK reviews say about life?
The eight UK ratings include reports that the diamond layer disappears after a short cut. One review puts the useful cut at roughly six inches.
What thickness is listed?
The item thickness field is 1.2 mm on the 115 mm disc. A maximum rpm is not printed.
The WojBear U032-2P115 is two 115 mm vacuum-brazed discs at £11.99, with a 1 mm kerf and both 22.23 mm and 20 mm named in the title. The listing says a 65Mn steel body and vacuum-brazed diamond, made in China, at 200 g for the pack. Amazon.co.uk has no star line and there is no review text. The materials list runs from ceramic and porcelain to glass, jade and crystal, which is a wide claim with nothing from a UK buyer behind it. A 1 mm kerf can be awkward to clamp between flanges, and a maximum rpm is not printed. At this price you are buying the specification lines only.
Pros
Cons
Best for: A buyer who wants a thin 115 mm specification on paper and will not treat missing reviews as a pass.
Less suitable: A first porcelain edge, or anyone who wants UK reviewers to have already used the disc.
Specifications
Common questions
What size is the WojBear disc?
Two 115 mm discs with a 1 mm kerf. The title names both 22.23 mm and 20 mm. The model line is U032-2P115, made in China, at 200 g for the pack. A maximum rpm is not printed.
What materials does the listing name?
Ceramic, marble, rock slabs, porcelain, glass, jade and crystal. There is no review text, so that list is the listing only.
Is a safety standard printed?
No. The listing does not show a BS EN 13236 mark. amazon.co.uk has no star line for this ASIN.
The Vearter V-BLP-SM14-D76mm-5 is five 76 mm discs on an M14 mandrel at £14.99, with grit 80/100 stated and an item thickness field of 9.5 mm. The listing says the set cuts and polishes glass, ceramic, tile, marble and stone, wet or dry. Amazon.co.uk has no star line and there is no review text. A 76 mm mandrel wheel does not sit in a 115 mm guard the way the other discs here do, and 9.5 mm is not a thin tile kerf. You would buy it for small glass or polish work on an M14 spindle, and you would be buying that claim without a UK review to check it.
Pros
Cons
Best for: Small glass or polish work on an M14 grinder, if you accept a listing with no reviews.
Less suitable: Cutting 115 mm porcelain, brick or paving, or any job that needs a guarded 115 mm wheel.
Specifications
Common questions
What size is the Vearter disc?
Five 76 mm discs on an M14 mandrel. The model line is V-BLP-SM14-D76mm-5. The item thickness field is 9.5 mm. It is not a 115 mm guard disc.
What materials does the listing name?
Glass, ceramic, tile, marble and stone. The listing says the set cuts and polishes, wet or dry, at grit 80/100. There is no review text.
Is a safety standard printed?
No. The listing does not show a BS EN 13236 mark. amazon.co.uk has no star line for this ASIN.
Twelve amazon.co.uk listings, loaded on 19 October 2026, were scored for this page. Weights sum to 100. Review themes come from the stored review notes. There was no lab test, and none of the listings print a full BS EN 13236 mark. A stated 19,000 rpm on a 115 mm disc is treated as a conflict with the usual class speed, not as a target.
Stars
40%Amazon star rating divided by 5, then multiplied by 40, and rounded. A listing with no rating line scores 0 on this block.
Sample
25%2,000 or more reviews score 25, 1,000 or more score 22, 300 or more score 18, 100 or more score 14, and 20 or more score 8. Fewer than 10 score 3, and no rating line scores 0. A star line with no United Kingdom review text scores 6, and that count is not treated as British opinion.
Job match
25%How well the rim, diameter and mount match the job the UK reviews describe. Points come off for chipping, a spinning bore, an immediate break, a missing rpm, or a speed figure that fights a 115 mm grinder.
Value
10%Shelf price in GBP against pack size and the job, only after the diameter and mount are right. The highest value mark is not given to the top pick.
The checks run in this order: material and rim, then diameter and mount, then the stated maximum speed, then kerf, then whether UK reviews describe your material. The table is twelve amazon.co.uk listings loaded on 19 October 2026, from £6.98 to £19.90. This is not a lab test. A star between 4.4 and 4.6 does not mean the glaze stayed intact.
A diamond cutting disc is a steel wheel with a diamond rim. You use it to cut tile, porcelain, brick and concrete on a UK angle grinder or a small tile saw. It is not a metal-cutting wheel. The twelve amazon.co.uk listings here were loaded on 19 October 2026 and cost £6.98 to £19.90. Most are 115 mm with a 22.23 mm bore.
Tech Traders and worksky clear heat on masonry. The same segmented rim chips porcelain and glazed ceramic. Use a thin turbo or mesh rim when the edge has to stay tidy, and keep the feed slow.
A 180 mm disc does not fit a 115 mm guard. A 16 mm washer or reducer stays out when the arbor is 22.23 mm. Do not pack a bore, and do not modify it. One RDXMAX review says the disc spun in the flanges.
LEKOMESH states a 19,000 rpm maximum and a recommended 11,000 rpm. A supplier table labelled against EN 13236 lists about 13,200 rpm for a 115 mm disc at 80 m/s. Use the lower of the disc mark and the grinder plate.
Porcelain and glazed ceramic want a thin turbo or mesh rim. EZARC is two 115 mm mesh turbo discs at £17.97, 1.2 mm, with 13,300 rpm stated and 4.4 from 1,353 reviews. UK notes include a slow cut on 20 mm porcelain and severe chips when the feed is rushed. RDXMAX is two turbo mesh discs at £15.99, 4.5 from 3,473 reviews, with the title at 1.4 mm and the item field at 1.2 mm.
Match the diameter to the guard and the mount to the spindle. DT-DIATOOL is the only 180 mm disc here, at £19.90, and it will not fit a 115 mm guard. UK notes include 20 mm porcelain on a guided circular saw, and one disc broke immediately. SANLEETEK at £16.99 is M14, grit 40/50, plated on both sides, with a 13,200 rpm maximum. It will not clamp in a 22.23 mm bore, and a tiler reported bad chips. Vearter is 76 mm on an M14 mandrel with no review line.
Three typical situations, each with a recommendation from this comparison.
You are cutting ceramic floor tiles, metro tiles or a socket cut-out, and you want one disc with a large UK review file. The Bosch 115 mm ceramic disc is the top pick at £6.98, with 4.6 from 5,979 reviews. Keep the feed slow. It is a poor match for a long run of very hard porcelain.
You are cutting rectified or 20 mm porcelain and you can keep the feed slow. Start with a mesh turbo that has porcelain reviews. EZARC is two 115 mm discs at £17.97, 1.2 mm, with 13,300 rpm stated and 4.4 from 1,353 reviews. A rushed pass still chips, and a show edge may still need a wet saw.
You are cutting paving, brick or a concrete cill and you want spare discs in the box. Tech Traders is the best value: three segmented 115 mm discs at £9.79, with 4.5 from 3,103 reviews. Treat the dust as silica. Do not put this rim on a glazed edge.
The top pick is the Bosch 115 mm ceramic cut disc, one disc at £6.98, with 4.6 from 5,979 reviews, a 22.23 mm bore and a 1.6 mm kerf. UK reviews describe floor tiles, metro tiles and socket cut-outs when the feed stays slow. It dulls on a long run of very hard porcelain, and a maximum rpm is not printed. The best value is the Tech Traders three-pack at £9.79, segmented 115 mm discs with 4.5 from 3,103 reviews, for concrete cills, paving and grout. A segmented rim chips glazed tile. A 4.6 from 22 reviews does not lead the masonry set, because that file is too small.
Bosch 115 mm ceramic cut, 1 disc
4.6 from 5,979 reviews at £6.98, a 115 mm ceramic disc with a 1.6 mm kerf, and UK reviews of floor tiles, metro tiles and socket cut-outs. Porcelain still needs a slow feed, and rpm is not printed.
Tech Traders 115 mm segmented, 3-pack
Three segmented 115 mm discs at £9.79, 4.5 from 3,103 reviews, with 13,000 rpm printed. UK reviews cover cills, paving and grout. The rim chips a glazed edge.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Sources taken from the research digest. Prices, stars and review counts are the stored amazon.co.uk listing figures from 19 October 2026.
This article contains affiliate links. If you buy through these links we may earn a small commission, at no extra cost to you. Prices, stars and review counts come from stored amazon.co.uk listings. We did not run a lab test.
