18mm Ratchet/Lock The original OLFA snap-off heavy-duty cutter features a contoured durable handle with a ratchet-wheel blade locking mechanism. Unlimited blade adjustment. The blade is easy to replace and the knife will accommodate most heavy-duty 18mm blades.

9mm Ratchet/Lock This knife is larger than other Olfa standard duty cutters, providing more leverage for tougher cutting projects. It features a positive slide lock, a ratchet wheel blade locking mechanism to hold blade in place and a stainless steel blade channel that holds a blade tight. The snap-off blade is long-lasting and durable, and provides a new sharp edge with each snap. Uses OLAB and OLA1160B blades.

9mm Slide Lock This art and craft knife features a positive slide lock, steel pocket clip/blade snapper and a heavy gauge stainless steel blade channel that holds blade tight for safety and control. The long lasting, durable snap-off blade provides a new sharp edge with each snap. Uses OLAB and OLA1160B blades.