These Trimming Knife Blades 10 Heavy Duty are replacement blades supplied in packs of ten for use in Draper-style trimming and utility knives. Their primary use is precision trimming and cutting of sheet materials such as vinyl, linoleum, roofing felt, rubber sheeting, paperboard, carpet underlay and other general-purpose workshop or site trimming tasks.

The blades are manufactured from hardened high‑carbon tool steel, heat treated and accurately ground to provide a keen cutting edge and durable wear resistance. The cutting face is bright‑ground and honed to a sharp single straight edge; a light protective finish is applied to reduce surface oxidation in storage. As consumable hand‑tool items they are produced under Draper Group quality controls (manufacture in line with ISO 9001 processes) and are sized to fit standard Draper heavy‑duty utility knife housings and snap‑in blade carriers. These blades have no threads, head or drive type – they are straight replacement utility blades for manual holders.

Typical applications include trades and industries where frequent, controlled trimming is required: flooring and carpet fitting, roofing and building envelopes, glazing and signmaking, upholstery and automotive interior trimming, packaging and general maintenance workshops. The blade geometry and hardness are chosen to combine a long service life with straightforward re‑sharpening or replaceability on site.

Key benefits of these heavy duty blades are their edge retention (from the hardened, high‑carbon steel), good dimensional stability for consistent cutting performance, and compatibility with a wide range of Draper‑style knives. The protective finish offers reasonable resistance to surface corrosion during normal storage and site use; as with all carbon tool steels they should be kept dry or lightly oiled for prolonged storage to avoid rust.

Duchy Fasteners stocks these trimming blades in packs of 10 and carries a broad range of replacement blades and Draper hand tools in multiple sizes and pack quantities to suit trade and DIY needs. If you require a different blade profile or a pack size, please contact us for availability.