By-pass blade is high-carbon fully heat-treated steel with a Teflon (tm) coating for durability and easy cutting. Lightweight, well balanced, designed for extended use. Hook and body are hard chrome and fully heat treated. Enclosed spring is protected from debris. Sap relief on hook keep blade clean. Low profile lock is easy to operate with either hand and won't interfere with cutting in tight spaces. Textured ergonomic grips for non-slip comfortable feel.