QU Industrial Zero-Set Chuck Adapter AS-307, A Series, 8-1/4 Diameter, A2-5 Mount – 34-720-3

QU Industrial Zero-Set Chuck Adapter AS-307, A Series,8-1/4" Diameter, A2-5 Mount Adapter Back Plate for 8-1/4" Diam Self Centering Lathe Chucks A2-5 Mount A Series for Shorter Taper Spindles Specifications: Nominal Chuck Size 8-1/4 Spindle Nose Type A Ser