If you have a job cutting flooring, drywall, rubber, gaskets, or roofing materials, then you need the OLFA 18mm L-1 Ratchet Lock Utility Knife. With an ergonomically designed anti-slip handle that's tough enough for contractors, this classic knife is a snap to use. The ABS handle is contoured and designed for high-impact, but for additional control, check out the inset rubber handle of the L-2 Model.
For a fresh blade edge, simply snap off the used section and keep on working. The blade-locking mechanism is designed with a ratchet dial so you can use all sections of the snap blade, which is also supported by a channel made of stainless steel. As with most OLFA models, this ratchet-lock snap knife comes with a blade preloaded.