OLFA 5003 Utility Knife, 18 mm W Blade, Stainless Steel Blade, Pistol-Grip Handle, Yellow Handle

With this OLFA utility knife, you're not locked into a fixed depth, its ratchet-lock mechanism gives you unlimited blade positions. The knife has a micro-honed blade for great sharpness and edge retention. Use this utility knife for heavy-duty cutting including drywall, linoleum, carpet, flooring materials, insulation and roofing materials and other construction materials.