The best utility knife blades, compared.
Top pick: zonmaxmizky ceramic, 10 Best value: OX Pro 25 mm, OX-P220710 – Best value when the knife is already 25 mm: title, model and fit agree, at about £8.57 for 10. The £5.39 18 mm pack contradicts itself on width. Updated October 2026.
They are not the knife, and they are not oscillating multi-tool blades. The usual shapes are a trapezoid trimming blade, an 18 mm or 25 mm snap-off strip, a hook, a concave flooring blade, a named scraper blade, or a ceramic blade. The knife you already own is the first filter. A line that says the blades fit standard knives means a trapezoid-pattern knife, not an 18 mm snap-off knife. Tell the packs apart by fit, profile, and a review file that is actually about blades. A pack count that disagrees with itself cannot support a price per edge. The [utility knife blades buying guide](/hub/diy-supplies/utility-knife-blades/sub/utility-knife-blades-buying-guide) sets out fit, profile and the dispenser before you use the table. Utility knife blades are replaceable edges for a hand knife.
They are not the knife, and they are not oscillating multi-tool blades.
32 products checked · 58 hrs invested · +22,100 readers
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Personal buying guide
Question 1 of 2
Which knife do you already own?
The zonmaxmizky pack is 10 ceramic blades at £12.99, with a size bullet of about 6.1 by 1.9 cm and an item-length cell of 2.4 inches. The bullets limit the job to paper, cardboard, tape, film, thin plastic, and fruit peels, and they say ceramic resists dulling. That is this listing's claim, not a Slice non-spark or longevity test, and no British Standard is named. One review, rated 5.0, says standard fit, shaving sharp, and a long-lasting edge, which is one person's knife rather than a sample. There is no dispenser line, and the rank sits in Utility Knives rather than Knife Blades. About £1.30 a blade is the dearest per-blade arithmetic in the set for a light cutting job. Ceramic here is a brittle edge for paper and card; it is not a carpet hook, and it is not snapped into segments.
Pros
Cons
Best for: Light paper and card cuts, if a ceramic blade of this size seats in your knife.
Less suitable: Carpet, vinyl, roofing sheet, or a job that needs a steel snap-off or trapezoid edge.
Specifications
Common questions
How big does the listing say the ceramic blades are?
The size bullet says about 6.1 by 1.9 cm. The item-length cell says 2.4 inches. The pack is 10 blades at £12.99.
What do the bullets say they cut?
Paper, cardboard, tape, film, thin plastic, and fruit peels. They also say ceramic resists dulling. They do not name a British Standard or a non-spark test.
What does the only review say about fit?
One review, 5.0, says standard fit, shaving sharp, and a long lasting edge. The rank line is in Utility Knives, not Knife Blades.
The Stanley listing at £10.86 is the familiar two-point trapezoid for a standard retractable Stanley knife, and the first 50 of 10,011 reviews at 4.7 are about blades rather than another tool. Reviewers describe a sharp edge and a dispenser that holds used blades. You cannot treat the pack as a known quantity: the title says a pack of 3 and regular duty, the model cell says 2pk, and the included-components cell says a heavy-duty 10-pack. The material cells disagree as well, with stainless steel in one and high carbon steel in another. Stanley's own UK page for the 1992 pattern gives 62 mm by 0.63 mm and two tips, but that page is not a count of what this listing ships. One review says a blade went blunt quickly on carpet tiles, one says the fit was not exact on an old knife, and one says an end would not seat. Count the blades when the box arrives before you work out a price per edge.
Pros
Cons
Best for: A retractable Stanley-pattern knife, after you count the blades in the box.
Less suitable: Carpet tiles, a knife that already wobbles with this blade, or a per-blade price sum.
Specifications
Common questions
How many blades does this Stanley listing say are in the pack?
The title says a pack of 3. The model cell says 2pk. The item-type cell and the included-components cell say a heavy-duty pack of 10. The price printed is £10.86. Reviewers also mention 10 blades.
Which knives do the bullets say these blades fit?
The bullets say the blades fit all standard Stanley knives. They also say the blade is a two-point reversible trapezoid with two cutting positions. They do not say it fits an 18 mm or 25 mm snap-off knife.
What do the first 50 reviews say about fit?
Most say the blades fit a Stanley or similar retractable knife and are sharp. One says the fit was not exact on an old knife. One says one end would not seat. One says a blade felt wobbly and wondered if the knife wanted a thicker blade.
Milwaukee 48-22-1950 is listed at £10 as a 50-piece trimming-blade pack, with stainless steel and China in the cells. The star line is 4.7 from 1,230, which looks decisive until you read the texts: the first 50 are mostly locking pliers, grips, or drills. A few lines do call blades sharp and mention a dispenser, and two call the blades poor or cheap, so those texts are not a blade average you can use. The page never names the knife these blades fit, so trimming blade is a job label rather than a slot. The unit count is 1.0 beside a 50-blade included line, and the weight cell prints 4.54 g next to that 50-piece claim. US pages talk about micro-carbide and mixed origins; this UK listing does not, and those claims do not belong on this row. Buy it only after you have seen the profile in the box.
Pros
Cons
Best for: A buyer who has already confirmed this trimming blade fits the knife and wants 50 at £10.
Less suitable: Anyone reading 1,230 reviews as blade opinion, or anyone shopping by the word trapezoid.
Specifications
Common questions
How many blades does the Milwaukee listing claim?
The bullets say a 50-piece bulk pack three times, and the included-components cell says 50 blades. The unit count is 1.0 and the number of packs is 1. The price is £10.
What do the first 50 reviews actually describe?
Most of them describe Milwaukee locking pliers, grips, or drills. A few lines call the blades sharp and mention a dispenser. Two lines call the blades poor or cheap. The 4.7 from 1,230 is the printed star line, not a blade-only count.
Which knives does the page say they fit?
The listing does not name a knife. Fit is not stated. The country-of-origin cell says China and the material cell says stainless steel.
Bosch 1600A01V3J is 50 trapezoid blades in a dispenser at £15.55, and the bullets say you can slide out one blade or five and park used blades in the same case. Across 598 reviews at 4.7, the first 50 talk about that dispenser rather than a different product. The steel line is not settled: the bullets say S2 CVM and the material cell says stainless steel. The fit sentence on the listing is Bosch Professional standard universal knives, though some reviewers also seated the blades in a Workpro knife and in other knives they already owned. A few people found the case larger than they wanted, and one review says the blades do not last long. At about 31p a blade the pack costs more than a small Stanley box, and you only get that figure because the count of 50 is consistent on the page. It is the top pick here when you already own a trapezoid knife and want a known quantity plus a place for spent edges.
Pros
Cons
Best for: A Bosch Professional trapezoid knife you use often enough to keep 50 spares, with a slot for used blades.
Less suitable: An 18 mm or 25 mm snap-off knife, or a one-off parcel job where a small pack is enough.
Specifications
Common questions
How does the Bosch dispenser work, according to the listing?
The bullets say the dispenser slides out one blade or five at a time and also stores used blades. The pack is 50 trapezoid blades, part 1600A01V3J, at £15.55.
What steel does the page name?
The bullets say S2 CVM steel. The material cell and the blade-material cell say stainless steel. Both lines are on the listing.
Which knives do reviewers say the blades fitted?
The bullets limit the claim to Bosch Professional standard universal knives. In the first 50 reviews, people also say the blades fitted a Workpro knife and other knives they already owned.
OX OX-P220710 is a 25 mm SK5 snap-off 10-pack at £8.57, with 7 segments, a blackened finish, and a safety dispenser. The title and the fit bullet agree on OX 25 mm knives and most standard 25 mm snap-off box cutters, which is the cleaner width statement of the two OX rows. The 4.6 from 114 is not a separate sample: it is the same texts as the 18 mm pack, and they describe the knives. At about 86p a blade you pay more than the 18 mm listing and less than the Bosch 50-pack, and you can at least name the slot before you order. A 25 mm strip will not lock in an 18 mm body such as Stanley's InterLock 0-10-018, which is an 18 mm knife with eight segments. The item-length cell prints 21 cm, which describes the pack rather than a cutting depth. It is the best value in this set when the knife in your hand is already 25 mm, because the cheaper 18 mm row contradicts itself on width.
Pros
Cons
Best for: A 25 mm snap-off knife, when you want a small pack whose width line agrees with itself.
Less suitable: An 18 mm knife, a trapezoid knife, or anyone treating 114 stars as a blade test.
Specifications
Common questions
How many segments does the 25 mm pack claim?
The bullets say 7 snap-off segments on each blade. The pack is 10 blades at £8.57, model OX-P220710, SK5 with a blackened finish and a safety dispenser.
Will a 25 mm blade fit an 18 mm knife?
The fit bullet names OX 25 mm snap-off knives and most standard 25 mm snap-off box cutters. It does not say the blade fits an 18 mm body.
Are the 114 reviews only about these blades?
No. They are the same texts as the 18 mm OX pack and they describe snap-off knives. A few lines mention replacement blades.
OX OX-P220510 is an 18 mm SK5 snap-off 10-pack at £5.39, the lowest shelf price in this set, with 8 segments and a safety dispenser in the bullets. The title, model, and included line agree on 18 mm. Two bullets then say most standard 25 mm snap-off knives and call the same blades 25 mm box-cutter blades, so the width is not settled on the page. The 4.6 from 114 is the same review file as the 25 mm pack and as knife listing B0FPSHHCJH, and the texts describe snap-off knives rather than this strip. SK5 is a carbon tool steel, about 0.80 to 0.90 percent carbon in the JIS note for SK85, not stainless, and this listing does not print a hardness. About 54p a blade is the entry price only if the blades in the dispenser are actually 18 mm. They will not lock in a trapezoid Stanley knife.
Pros
Cons
Best for: An 18 mm snap-off knife, if you treat the 25 mm sentences as a clash and check the first blade.
Less suitable: A trapezoid Stanley knife, or a 25 mm snap-off body.
Specifications
Common questions
Are these 18 mm or 25 mm blades?
The title, model OX-P220510, item type, and included line say 18 mm SK5 snap-off blades, 10-pack, with 8 segments, at £5.39. The first bullet also says most standard 25 mm snap-off knives, and another bullet calls them 25 mm box cutter blades.
Will they fit a trapezoid Stanley knife?
The listing describes snap-off blades for OX 18 mm snap-off knives. It does not say they fit a trapezoid retractable knife.
Whose reviews are the 114?
The file's first 50 texts are the same as the OX 25 mm pack and describe OX snap-off knives, including twist locks and aluminium bodies. The same 4.6 from 114 appears on knife ASIN B0FPSHHCJH.
OPFYWF is a 100-piece SK5 hook set at £16.99, with carpet, flooring, and wallpaper on the bullets and an item-length cell of 48 mm. The star line is 4.2 from 9, and five review texts are on the listing. They do not agree: some call the hook useful and sharp, including one job on golf-club grips, and one says the blades are not sharp enough for carpet and will be returned. One reviewer warns that the blade will cut a hand, very deep, and to mind your hands. The colour cell is spelled Sliver, and a storage box appears in a highlight rather than as a full dispenser specification. Hook blades pull through carpet and felt; they are not a fine edge for a visible vinyl seam, and they are not segmented. About 17p a blade is a large pack for a specialist profile, and the carpet result in these reviews is split, so change the blade when the cut starts to tear.
Pros
Cons
Best for: A utility knife that takes hook blades, for carpet or sheet flooring, if you change the blade when it tears.
Less suitable: A visible vinyl or LVT edge, or a knife that does not take a hook.
Specifications
Common questions
What are these hook blades for, on the listing?
The bullets name carpet installation, flooring, wallpaper trimming, and general preparation. The set is 100 SK5 blades at £16.99. The item-length cell says 48 mm.
Do the reviews agree they cut carpet?
One of five texts says they are not sharp enough for carpet and will be returned. Others call the hook useful and sharp, including one use on golf-club grips. The star line is 4.2 from 9.
Is there a safety line?
The listing has none. One reviewer says the blade will cut a hand, very deep, and to mind your hands.
Belivy is 100 concave SK5 blades plus a black plastic dispenser at £12.99, with flooring, carpet, and vinyl named on the title. The title also says they fit all standard utility knives, and no notch count is printed, so that fit line is a claim you cannot check from the page. The only review is 1.0 and calls them cheap and not good enough for the price, without naming a fit or a snap fault. The weight cell says 0.36 g, which is not a credible weight for 100 blades and is still what the listing prints. About 13p a blade looks cheap only if the edge and the slot are real when you open the box. A concave profile is the finer curve used on vinyl and LVT, not a hook for carpet pile and not a snap-off strip. Check the first blade in the knife before you cut a visible edge.
Pros
Cons
Best for: A standard utility knife, if you specifically want a concave edge and can check the first blade.
Less suitable: Carpet pile that needs a hook, or a purchase decided by the 100-count alone.
Specifications
Common questions
What profile are the Belivy blades?
The title and the included line say concave SK5 utility blades, 100 of them, with a black plastic dispenser, at £12.99. The title names flooring, carpet, vinyl, DIY, and crafts.
Do they say they fit every utility knife?
The title says they fit all standard utility knives. No notch count is printed. They are not described as snap-off blades.
What does the only review say?
One review, rated 1.0, says they are cheap and not good enough for the price. It does not name a fit or snap fault.
YOIbuy YUKB-2-50 is 50 scraper blades at £17.21, and the compatibility bullet is the clearest fit line in this set: YUK-F2, YUK-S2-P, and TB scraper knife TB-H4S5-01, and explicitly not YOIbuy PRO YUK-01. The bullets say SK2 with a black rust-prevention treatment, while the blade-material cell says high carbon steel. The title describes five 10-piece storage cases. There is no star line and no review text on the listing, so there is no UK buyer comment on edge life or on whether the blade seats. Handle-material and handle-type cells are printed on a blade pack, which is catalogue noise rather than a second product in the box. At £17.21 this is the dearest shelf price here, for a scraper that is not a general trapezoid and not a snap-off strip. It is only worth opening if one of those three model numbers is the knife you already own.
Pros
Cons
Best for: Owners of YUK-F2, YUK-S2-P, or TB-H4S5-01 who want the numbered spare.
Less suitable: A standard Stanley knife, a snap-off knife, or anyone who wants UK reviews before they buy.
Specifications
Common questions
Which scrapers do these blades say they fit?
The bullet says YOIbuy PRO YUK-F2 and YUK-S2-P, and TB scraper utility knife TB-H4S5-01. The same bullet says they are not compatible with YOIbuy PRO YUK-01. The price is £17.21 for 50.
What material is printed?
The bullets say SK2 with a black rust-prevention treatment, heat treated. The blade-material cell says high carbon steel.
Is there a star rating?
The listing has no customer-reviews line and no review text. There is no star rating to quote.
Scores use the nine amazon.co.uk listings in this comparison. They are not a laboratory test and they do not rank the wider UK aisle. Stanley FatMax induction blades, sold by Screwfix at £28.99 including VAT for a 100-pack, are outside this set. Prices and stars are the figures from each listing.
Stars when the texts are about blades
35%Thirty-five points for the amazon.co.uk star line only when the review texts are about these blades. A large count that describes pliers or knives is scored low.
A listing you can buy from
25%Twenty-five points for whether you can buy from the page as it stands: one blade family, a pack count that agrees with itself, a named fit, and a steel line that does not contradict the next cell.
Price against a usable pack
20%Twenty points for price against that usable pack. Per-blade figures are arithmetic from the printed count. They are not a second shelf price. A count that clashes cannot earn a value sum.
Review sentiment
20%Twenty points for review sentiment, with deductions for seating faults, a dull edge on the stated job, catalogue lines that disagree, and no reviews at all.
Start with the knife, not the star line. A trapezoid retractable knife, an 18 mm snap-off knife, a 25 mm snap-off knife and a named scraper do not share a blade. Then match the cut: a straight trapezoid for board and card, a hook for a pull through carpet or felt, a concave blade for vinyl and LVT, and ceramic only for the light materials on that listing. Trust a pack count only when the page agrees with itself. Read the review texts. Prices in this set run from about £5.39 to about £17.21.
Utility knife blades are replaceable edges for a hand knife. They are not the knife, and they are not oscillating multi-tool blades. On amazon.co.uk the usual shapes are a trapezoid trimming blade, an 18 mm or 25 mm snap-off strip, a hook, a concave flooring blade, a named scraper blade, or a ceramic blade. The knife you already own is the first filter. A line that says the blades fit standard Stanley knives means a trapezoid-pattern knife. It does not mean an 18 mm snap-off knife.
A trapezoid blade, an 18 mm strip, a 25 mm strip, a hook and a scraper do not share a slot. A line that says the blades fit standard Stanley knives means a trapezoid-pattern knife, not an 18 mm snap-off knife. If the blade wobbles, stop.
Milwaukee's 4.7 from 1,230 is mostly pliers in the first 50 texts. The OX 4.6 from 114 is shared by both packs and describes the knives, the same corpus as B0FPSHHCJH. Those stars are not a blade test.
The Stanley listing prints a pack of 3, 2pk and a heavy-duty 10-pack. SK5 is carbon tool steel, not stainless, and these listings do not print a hardness. Do not treat that Stanley listing as definitely a 10-pack.
Match the knife before you match the price. A trapezoid trimming blade, an 18 mm snap-off strip, a 25 mm snap-off strip and a named scraper blade do not share a slot. If the blade wobbles, stop. A line that says the blades fit standard Stanley knives means a trapezoid-pattern knife. It does not mean Stanley's InterLock 0-10-018, which is an 18 mm knife with eight segments. A 25 mm blade will not lock in that body.
Trust the count and the steel line only when the page agrees with itself. The Stanley listing at £10.86 says a pack of 3 in the title, a 10-pack in the included-components cell, and 2pk in the model cell. The material cells disagree as well. A per-blade price from that row is not usable. Bosch is 50 trapezoid blades at £15.55, about 31p a blade, because the count of 50 is consistent. The bullets say S2 CVM and the material cell says stainless steel, so the steel line is still not settled.
Three typical situations, each with a recommendation from this comparison.
You have one trapezoid-pattern knife and you want a pack you can count. Bosch 1600A01V3J is 50 blades at about £15.55. The bullets say the dispenser feeds one blade or five and stores used blades. The fit line names Bosch Professional trapezoid knives. It will not fit an 18 mm snap-off body.
You need the width already in the knife, one segment proud. OX OX-P220710 is about £8.57 for 10, with 7 segments, and the title agrees with the fit bullet. The 4.6 from 114 describes the knives, not a separate blade test. A 25 mm strip will not lock in an 18 mm body such as Stanley's InterLock 0-10-018.
You need a hook and a concave or straight blade as separate packs. OPFYWF is 100 SK5 hook blades at about £16.99, with carpet, flooring and wallpaper on the bullets. Five texts do not agree on carpet, and one warns of a deep cut. Belivy is the concave 100-pack in this set, with one negative review. Check the first blade before a visible edge.
The top pick is the Bosch Professional 1600A01V3J, 50 trapezoid blades in a dispenser at about £15.55, with 4.7 from 598 reviews about that case. It is the highest score because the pack count agrees and the reviews describe blades. The steel line still prints both S2 CVM and stainless steel. The best value is the OX 25 mm pack, OX-P220710, at about £8.57 for 10, when the knife is already 25 mm. The cheaper OX 18 mm pack does not take that place: two bullets also say 25 mm, so the lower shelf price is not a price you can trust. Neither award is a laboratory test.
OX Pro 25 mm, OX-P220710
Best value when the knife is already 25 mm: title, model and fit agree, at about £8.57 for 10. The £5.39 18 mm pack contradicts itself on width.
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.
GOV.UK, legislation.gov.uk, the Crown Prosecution Service, HSE, Stanley UK, OLFA UK, Westminster and a JIS note on SK85 (SK5). Prices and stars are the amazon.co.uk listings for the nine ASINs in this comparison. Prices move.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Scores compare published listings and review texts. They are not a laboratory test.
