Reach for the OLFA 18 mm L-1 ratchet lock utility knife for construction or industrial tasks. With a durable ABS plastic handle, this classic knife is resilient enough for any trade. The contoured handle fits in hand for all day comfort. The ratchet-style blade lock secures the blade in place. A stainless steel blade channel supports the length of the blade for powerful cutting. This ratchet lock snap knife comes preloaded with a tough silver snap blade. Each blade has eight deep-etched grooves to provide a new blade in seconds. For a fresh edge, snap-off the used section and keep on working. A tool-free blade change keeps you moving all day long.