hia Large Thread Quick Change Arbor, 7/16" A954 T340 Features Specifications Tool-free operation Shank Sie al, quick change with alf brands of hole poe Oty 1 HAWED Fits Hole Saw 1-148 Carper No adapters required Shea Modifiable hardened steal Construction Style Ouch Chase Hole Sai Ails all hate saws 1074 ind and larger Arbor Fits all dill chucks 12 viand larger