The Klein Tools 44138 Replacement Coping Blades features a straight blade for use with the Klein folding utility knife, 44218. This unit features an induction hardened 440A stainless steel construction. The heavy-duty coping blade is held securely in the utility knife handle by a captive screw making it secure as a fixed-blade knife. The Klein 44138 comes standard with a pack of 3 replacement blades.