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Updated: 06 Apr 2026

10 Best Knife Blades Carbon-steel

#1 Best Pick
NT Cutter 18mm Heavy-Duty Snap-Off Blades Carbon Steel 50-Pack 58 Degree

NT Cutter 18mm Heavy-Duty Snap-Off Blades Carbon Steel 50-Pack 58 Degree

Brand: NT Cutter
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  • Heavy duty snap-off blades
  • 18mm W x 100mm Lx 0.45mm T
  • 58 degree
  • Made of high quality carbon tool steel
  • Packed in hanging plastic container.Cutting material: Cardboard, rubber, leather, corkboard, acetates, linoleum, carpet, thin veneer,form board, etc..50ea per pack.Made in Japan
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#2 Best Value
OLFA LB-50 18mm Snap Off Blades 50PC Spare Blades | Made in Japan

OLFA LB-50 18mm Snap Off Blades 50PC Spare Blades | Made in Japan

Brand: OLFA
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  • Heavy duty blades
  • Japanese steel for best durability
  • Super sharp
  • 18mm wide 0.5 thick
  • 50 blades pack
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#3 Budget Pick
NT Cutter 9mm Snap-Off Blades, 50-Blade/Pack, 1 Pack (BA-50P)

NT Cutter 9mm Snap-Off Blades, 50-Blade/Pack, 1 Pack (BA-50P)

Brand: NT Cutter
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  • Standard duty snap-off blades
  • 9mm W x 80mm L x 0.38mm T
  • 58 degree
  • Made of high quality carbon tool steel
  • Packed in hanging plastic container.Cutting Material: Paper, wallpaper, card stock, vinyl, film, shrink-wrap, etc..50ea per pack.Made in Japan
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#4 Top Choice
ZUZUAN Utility Knife Blades SK5 Steel 200-pack with Plastic Case, Durable Single Edge Box Cutter Blades, Standard Size Knife Blades for Most Standard Utility Knives, Silver

ZUZUAN Utility Knife Blades SK5 Steel 200-pack with Plastic Case, Durable Single Edge Box Cutter Blades, Standard Size Knife Blades for Most Standard Utility Knives, Silver

Brand: ZUZUAN
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  • Made from Heavy Duty Premium SK5 steel, which is industrial high carbon steel, compare with general carbon steel, SK5 steel has higher hardness and wear-resistance for maximum durability
  • Each utility knife blade was engineered with a precision-honed edge which has flat, neat and sharp edge, so the utility knife blade features faster cutting speed and extended cutting life without breakage
  • Single edge knife blades are standard size for most standard utility knives, trapezoid shape, 2.4” length, 1.25” width, 0.75” height, 0.6mm thickness, 10pcs knife blades are individually wrapped by a plastic case, total 20 plastic cases including 200pcs knife blades
  • Industrial design-The cutter blade’s cutting angle is 50 degree, making the force more uniform and not easy to break, ideal for cutting cardboard, rubber, leather, linoleum, rope, soft metal and most DIY projects, designed for general purpose cutting
  • Our cost-effective knife blades are packed in plastic cases for safe storage and convenient use, and each knife blade is rigorously tested, meanwhile the unit price is no more than 0.07 dollar, the most economic ones on Amazon
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#5 Popular Choice
50 PCS Exacto Knife Blades, High Carbon Steel #11 Refill Exacto Art Blades Cutting Tool with Storage Case for Craft, Hobby, Scrapbooking, Stencil

50 PCS Exacto Knife Blades, High Carbon Steel #11 Refill Exacto Art Blades Cutting Tool with Storage Case for Craft, Hobby, Scrapbooking, Stencil

Brand: DIYSELF
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  • Great Blades So Far :Razor-sharp premium blades are made from solid SK-5 high carbon steel for a sharp edge that lasts.
  • Fit In All Fine Craft knives :Our blades are standard #11 fine point blades and fit all craft knives.
  • Wide Application :Ideal for cutting wood, cardboard, paper, plastic, cloth, leather and foam board craft.
  • Rust Resistant & Lubricated :Finely coated with a thin layer of lubricant to protect the blades from rust and ensure quality after prolonged storage.
  • 100% Risk Free Purchase :If you are not satisfied with DIYSELF hobby knife blades set.Please contact us, we will provide your 100% service
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#6 Top Pick
Walquicks 62 Pcs Sculpting Blades Kit – Premium Carbon Steel Utility Blades With 6 Styles And 2 Knife Handles, DIY Replacement Blades For Sculpting, Craft Cutting Tools

Walquicks 62 Pcs Sculpting Blades Kit – Premium Carbon Steel Utility Blades With 6 Styles And 2 Knife Handles, DIY Replacement Blades For Sculpting, Craft Cutting Tools

Brand: Walquicks
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  • 【Premium Blades Kit with 60 Ultra-Sharp Blades】This blades kit includ 60 high-carbon stainless steel blades (6 models) and 2 ergonomic handles for effortless cutting. The rust-resistant, grade blades ensure long-lasting sharpness, perfect for crafting, and detailed work.
  • 【Individually Sealed for Safety】Each blade is sterilized and foil-sealed, ensuring hygienic, precise incisions. Ideal for DIY projects, thisblades kit guarantees clean, safe cuts every time.
  • 【Ergonomic Non-Slip Handles for Precision】The textured, anti-slip handles provide a secure grip, while the perfect blade-handle fit allows easy installation. The ultra-sharp, angled edge ensures smooth, accurate cuts for sculpting and wood carving.
  • 【Versatile for Crafting Use】From to artists, this blades kit excels in leatherwork, plant pruning. The lightweight, razor-sharp blades make detailed work effortless without bending or breaking.
  • 【Compact & Travel-Friendly for Professionals】Designed for portability, this blades kit is ideal for lab work, crafts, and travel. The anti-slip design enhances safety, making it the best choice for professionals and hobbyists who demand precision and reliability.
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#7 Top Pick
Makita Carbon Steel Utility Knife Blade (Pack of 10)

Makita Carbon Steel Utility Knife Blade (Pack of 10)

Brand: Makita
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  • A 10-pack of replacement utility knife blades
  • Made from carbon steel
  • Fits Makita E-10908 and P-90548 folding utility knives
  • Easy to install and deliver consistent performance
  • An essential accessory for maintaining the efficiency of your Makita utility knives
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#8 Top Pick
300 PCS Exacto Knife Blades, High Carbon Steel #11 Refill Exacto Art Blades Cutting Tool with Storage Case for Craft, Hobby, Scrapbooking, Stencil

300 PCS Exacto Knife Blades, High Carbon Steel #11 Refill Exacto Art Blades Cutting Tool with Storage Case for Craft, Hobby, Scrapbooking, Stencil

Brand: DIYSELF
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  • Great Blades So Far :Razor-sharp premium blades are made from solid SK-5 high carbon steel for a sharp edge that lasts.
  • Fit In All Fine Craft knives :Our blades are standard #11 fine point blades and fit all craft knives.
  • Wide Application :Ideal for cutting wood, cardboard, paper, plastic, cloth, leather and foam board craft.
  • Rust Resistant & Lubricated :Finely coated with a thin layer of lubricant to protect the blades from rust and ensure quality after prolonged storage.
  • 100% Risk Free Purchase :If you are not satisfied with DIYSELF hobby knife blades set.Please contact us, we will provide your 100% service
Check latest price on Amazon
#9 Top Pick
NT Cutter 9mm Snap-Off Precision Blades, 30 Degree Blades, 100-Blade/Pack, 1 Pack (BD-1800)

NT Cutter 9mm Snap-Off Precision Blades, 30 Degree Blades, 100-Blade/Pack, 1 Pack (BD-1800)

Brand: NT Cutter
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  • Standard duty snap-off blades
  • 9mm W x 72mm L x 0.38mm T
  • 30 degree
  • Made of high quality carbon tool steel
  • Packed in plastic container.Cutting Material: Film, vinyl, foam board, coroplast, leather, plastic edge, etc.100ea per pack.Made in Japan.Standard duty snap-off blades.9mm W x 72mm L x 0.38mm T.30 degree.Made of high quality carbon tool steel.Packed in plastic container.Cutting Material: Film, vinyl, foam board, coroplast, leather, plastic edge, etc.100ea per pack.Made in Japan
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#10 Top Pick
HORUSDY 100-Pack Stanley Knife Blades with Dispenser, Replacement SK5 High Carbon Steel, Box Cutter Utility Knife Blade Folding Knife Blades - Standard Size - Fits Most Cutters & Knives

HORUSDY 100-Pack Stanley Knife Blades with Dispenser, Replacement SK5 High Carbon Steel, Box Cutter Utility Knife Blade Folding Knife Blades - Standard Size - Fits Most Cutters & Knives

Brand: HORUSDY
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  • PREMIUM MATERIAL – Constructed with durable SK5 high-carbon steel, ensuring superior sharpness and longevity for long-lasting performance.
  • EASY BLADE CHANGE – Quick and convenient blade replacement with an intuitive push-button mechanism, offering easy single-handed operation.
  • MULTI-PURPOSE USE – Perfect for cutting a variety of materials, including cardboard, plastic, foam, and vinyl, making it ideal for both home and industrial use.
  • SAFE AND DURABLE DESIGN – Features a retractable blade and secure blade lock, along with a zinc-alloy body and non-slip TPR handle for comfortable and safe use.
  • 100 BLADE PACK – Includes a generous pack of 100 blades with a convenient dispenser for easy access, featuring adjustable blade storage for 1 or 5 blades at a time.
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