These Segment Blades 10pc x 18mm are replacement snap-off blades designed for use in 18mm utility knives and snap-off cutters. Each blade is 18mm wide with scored segments that allow the user to break off a dull section and expose a fresh cutting edge, making them ideal for continuous, repeatable cutting tasks where convenience and economy are required.

The blades are manufactured from high carbon tool steel and are heat treated to retain a keen edge for prolonged cutting life. The cutting edge is precision ground and the blade profile conforms to the common 18mm utility blade dimensions used across the industry, ensuring compatibility with Draper Tools 18mm knives and most other manufacturers’ 18mm snap-off handles. As these are plain blades there are no threads, head or drive types applicable.

Typical applications include cutting plasterboard and drywall, trimming carpet and vinyl flooring, slicing roofing felt, cutting cardboard and packaging materials, trimming rubber and gasket materials, and other general workshop and site duties. They are commonly used across construction, flooring and refurbishment, glazing, sign-making and general maintenance workshops where frequent, accurate cuts are required.

Key benefits of these segment blades include the economy of segmented replacement (minimising downtime by snapping to a fresh edge), the edge retention provided by heat treatment, and wide compatibility with standard 18mm utility knife systems. The blades have a natural steel finish; like all carbon tool steels they should be stored dry and used in dry or low-corrosion environments to avoid surface rust—for more corrosive conditions consider stainless or coated alternatives.

Duchy Fasteners stocks these 18mm segment blades in handy 10-piece packs and carries a wider range of replacement blades and sizes for 18mm and other utility knives, suitable for trade and workshop requirements. If you need larger quantities or alternative finishes, please contact us for availability.