Home / Turning / Chucks & Face, Drive, Back Plates / Chuck, 3 Jaw, Threaded Back 2-7/8 5TPI Union 8-1/4″ Diameter View cart “Chuck Jaws, for Boring Mill, Willis, Set of 4” has been added to your cart. Chuck, 3 Jaw, Threaded Back 2-7/8 5TPI Union 8-1/4″ Diameter$175.00 1 in stock Add to cart Category: Chucks & Face, Drive, Back Plates Description Description Union 8-1/4″ 3 Jaw Self Centering Chuck, 2-7/8″-5TPI Spindle Thread, 51 Pounds Related products Chuck, 3 Jaw, Threaded 2-1/4 8 Bison 10″ Diameter Reversible Top Jaws $349.00 Add to cart Chuck Jaws, for Boring Mill, Willis, Set of 4 $595.00 Add to cart Chuck, 3 Jaw, Long Taper, L1, Diameter 12″ Skinner $149.00 Add to cart Chuck, 4 Jaw, Plain Back, Diameter 18″, SCA $295.00 Add to cart