Cutting Edge Knives Heretic model is equipped with a zinc handle and a 440 steel blade. The Heretic OTF from Cutting Edge knives offers a heavy duty build for reliable everyday use. It's out-fitted with a 440 steel blade that has heat treated for a high performance cutting edge. The blade has a two-tone finish with satin flats and black finished grinds. A stainless steel reversible pocket clip and glass breaker finish off the tactical design. Comes with a black nylon belt sheath.