Klein Tools VDV427-016-SEN Punchdown Tool - 66 Type,Klein - Geneva Supply,VDV427-016-SEN" /> 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 blades for clean, precise wire termination (depending on blade type)