Compatible with impact punchdown tool (VDV427-013) and other bayonet style (twist & lock) socket punchdown tools. Terminate cable in variety of cross-connect panels, blocks and keystone jacks. Induction hardened high carbon steel for durability and long life. Reversible blades with termination/cutting ends and termination only ends (depending on blade type). Precision ground cutting-edge for clean, precise wire termination (depending on blade type).