Supernova 2 Chuck Kit with 2" Jaws, 4" Powergrip Jaws, Woodworm Screw 4" Self Centering Woodlathe Chuck INCLUDES: 2" dovetail jaws, 4" Powergrip Jaws, woodworm screw Holds in both contraction and expansion modes Large range of accessories available ADAPTER INSERT MUST BE ORDERED SEPARATELY