Bison Semi-Finished 2-3/4 - 8 Threaded Adapter Plate 7-871-125 for 12" Chucks Bison Brand Bison Type Adapter Plate Style Semi-Finished Model Number 7-871-125 Application 12" Chuck Spindle Mount Threaded Thread Size 2-3/4 - 8 Body... Qty in Cart: 0 Price: Subtotal: