Description Fits 6″ 3-Jaw and 4-Jaw Lathe Chucks Designed specifically for the HiTorque 9×20 bench lathe. This adapter mounts to a 6″ 3-jaw or 4-jaw lathe chucks with a 3-bolt pattern or 4-bolt pattern and 142mm bolt circle. The adapter has no spindle side registration recess and is designed specifically for the HiTorque 9×20 lathe spindle. It has a 52mm center hole. Specifications Outside Diameter Ø 6.3″ (160 mm) Center Hole Ø 2.0″ (52 mm) Spindle Side Registration Recess None Spindle Side Bolt Circle Ø 3.0″ (75 mm) Chuck Side Registration Boss Ø 5.1″ (130 mm) Chuck Side Bolt Circle Ø 5.6″ (142 mm) Chuck Mounting Holes 6
