NT Cutter Heavy-Duty ABS Grip Screw-Lock Utility Knife (L-500P) Heavy duty ABS grip snap off blade utility knife Blade Size: 18mm Screw-Lock system Stainless steel blade-sliding-track / With built-in blade snapper # of blade included: 3 Replacement blade: BL-150P, BL-10P or BL-50P (BL-51P, BL-3000-ON, BSL-11P and BSL-21P are also applicable) Cutting material: Cardboard, rubber, leather, corkboard, acetates, linoleum, carpet, thin veneer,foam board, etc. Made in Japan