Master Mechanic, Quick Change, Countersink Set, Drill, Countersink Or Counterbore In Wood & Plastic, 1/4″ Hex Shank For Quick Change Adapters, Includes 4 Power Groove Countersinks: 6-3/32″, 8-7/64″, 10-1/8″ 12-1/8″ & Allen Wrench For Depth Adjustment.








