Olfa heavy-duty packaging cutter / knife is one the most versatile cutters made by OLFA and a classic example of value-added features often found in our cutters. In addition to the ratchet wheel blade lock and stainless steel blade channel, this cutter provides a 90-degree cutting base, an adjustable depth gauge and a built-in staple remover. Handle Guaranteed Forever. Uses replacement blades LB-5B, LB-10B, LB-50B, LBB-10B, LBB-50B, LH-20B, L-SOL-10B,"