These Segment Blades 10pc x 9mm are replacement snap-off blades designed for 9 mm utility knives and cutters, providing a controlled, repeatable cutting edge that is renewed by breaking away worn segments. The primary use is general-purpose cutting where a thin, sharp blade is needed: trimming cardboard and packaging, cutting carpet, vinyl and wallpaper, scoring drywall, light roofing felt and precision craft or sign‑making work.

The blades are manufactured from tempered tool steel with a precision-honed edge and a corrosion‑resistant black oxide finish to reduce surface rust and friction during cutting. The steel is heat treated to give a hard cutting face (typical hardness approximately HRC 55–60) while retaining enough toughness to avoid brittleness when snapping segments. Each blade is 9 mm wide and scored at regular intervals to allow safe breaking of used sections to expose a fresh edge. Thread type, head type and drive type are not applicable to this product.

These 9 mm segment blades conform to industry tooling dimensions common to DIN/ISO/BS hand‑tool blade specifications, ensuring compatibility with most standard 9 mm snap‑off utility knives, including Draper Tools and other professional hand tool ranges. The precision grind and hard edge give reliable cutting performance across a range of materials, while the protective finish extends service life in workshop and site environments.

Typical users are tradespeople and maintenance teams in construction, floor‑laying, glazing, sign‑making and general facilities management, together with workshop and DIY enthusiasts who require a compact blade with frequent, easy renewal of the cutting edge. Key benefits include improved corrosion resistance from the finish, a heat‑treated edge for sustained sharpness, and wide compatibility with common 9 mm tool handles, reducing the need for multiple blade types on site.

Duchy Fasteners stocks these segment blades in the 10‑piece 9 mm pack as detailed here; larger pack quantities and the 18 mm equivalent blade are also available on request to suit higher usage or different cutter sizes.