Auto-Lock snap-off utility knife. Auto-Lock allows quick and secure changes to the cutting depth with just one hand. Features 1 high carbon steel blade, straight stainless steel handle and channel, rust resistant construction, tool-free blade change, pocket clip, and blade snapper. Long lasting and durable. Ideal applications include window film and tint preparation, painting, cutting tape, shrink wrap, wallpaper, film, cardboard, caulking, and more. For replacement blades refer to Model No. 5010 (SKU 319505).