The Hultafors SRP 25A Snap-Off Knife is made of durable PC-plastic (polycarbonate) with a steel core for added stability. A 1mm thick metal blade rail provides additional stability. Ideal for cutting thick carpets or insulation. The symmetric design for right and left-handed usage and is fitted with a rubberised grip for improved comfort and control. Tapered for better visibility, access and control. Use the angled tip as a guide for measuring 45° and 90°. It comes with 4 blades, 1 in the blade rail and the extra 3 in the dispenser the knife holds. Specifications: Total Length: 186mm. Blade Width: 25mm. Blade Length: 125mm.