Hurricane Turning Tools HTC100 4-Inch Woodturning 4 Jaw Chuck Kit with Dovetail Jaws for Wood Lathes with 1 1/4 x 8-Inch TPI Spindles 4" (100MM) Diameter Made from steel with a chrome plated body. Includes Standard Dovetail Jaws, Screw, 6" Long Chuck Key, Allen Key, one threaded insert. includes Standard Dovetail Jaws, Screw, 6" Long Chuck Key, Allen Key for removing the chuck jaws and your choice of one threaded insert.