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Cutter & Knife Bladesare the removable or integral cutting edges fitted to hand-held knives and tools. They come in a wide variety of shapes, sizes and materials, each optimised for specific cutting tasks—from rough-and-ready utility work to ultra-fine surgical incisions.
Key Characteristics:
Material & Hardness: Typically made from high-carbon steel, stainless steel or specialised alloys; hardness varies to balance edge retention with toughness.
Edge Geometry: Bevel angle, grind style (flat, hollow, chisel) and micro-serrations determine slicing performance and durability.
Mounting & Replacement: Can be fixed (integral to the handle) or removable via clamps, screws or snap-off segments for quick changes.
Blade Profile: Straight, curved, hooked or tapering shapes suit different cut contours and applications.
Finish & Coatings: Polished, stone-washed or coated (e.g. Teflon, titanium nitride) to resist corrosion and reduce friction.
Common Types & Uses:
Utility Knife Blades: Usually trapezoidal or hook-shaped snap-off segments. Ideal for cutting cardboard, vinyl, carpet and packaging materials; once a segment dulls, simply snap it off to expose a fresh edge.
Art/Precision Knife Blades: Very fine, replaceable blades—often No. 11 or No. 16 on a craft-knife handle. Used for paper cutting, model-making, stencilling and detail work in vinyl or leather.
Fixed Blades: Integral to the knife’s handle (no replacement). Found on hunting, bushcraft or kitchen knives where a robust, full-tang construction gives maximum strength.
Snap-Off Blades: Long, segmented blades scored every few millimetres. Common in general-purpose knives for tradespeople—rapidly renew the cutting edge by breaking off a segment.
Scalpel Blades: Ultra-sharp, medical-grade steel blades in precise profiles (e.g. No. 10, 11, 15). Employed for surgical procedures, dissecting specimens and fine laboratory work.
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