The OLFA 18mm L-1 Ratchet Lock Utility Knife is the contractors choice for jobsite needs. Beginning with a comfortable shaped handle, this classic cutter meets the demands of the job. The tough ABS handle withstands drops and constant wear. The preloaded resilient Silver Snap Blade allows you to start working right out of the package. Continue working steadily thanks to the convenience of snap blade technology and simple, toolless blade changes. For a fresh edge, simply snap off the used section and keep on cutting. A ratchet-wheel blade lock maintains blade positioning. The unlimited blade positions maximize blade use without wasting any sections. The blade is held by a stainless-steel channel to provide confident cutting day-in-and-day-out. Fits most 18mm blades.