Part No: DKF-1

BHJ's Harmonic Damper Keyway Fixture provides an easy and accurate method for adding a second keyway to the hub of a harmonic damper, using a typical hydraulic or arbor press. Addition of a second keyway at 180 degrees is common when a damper hub will drive a screw-type supercharger.

A Registration Plug slides into the damper hub I.D. and indexes the hub at 180 degrees from the existing keyway. A supplied Two-Pass Broach Cutter is then drawn through the passage in the Registration Plug, resulting in a precision second keyway in the damper hub.

The Kit includes six Registration Plugs to accommodate Small and Big Block Chevy, Ford and Mopar applications. A pair of Two-Pass Broach Cutters, one 3/16" and one 1/4" is also included. BHJ's Crankshaft Dual-Key Fixture is a recommended companion to this Kit.