Home / Turning / Chucks & Face, Drive, Back Plates / Back Plate, Threaded, 2-3/8″ 6 TPI, Diameter 8-1/4″ View cart “Collet Chuck, Plain Back, 5-C Collets, Dunham, Item #K4331” has been added to your cart. Back Plate, Threaded, 2-3/8″ 6 TPI, Diameter 8-1/4″$49.00 1 in stock Add to cart Category: Chucks & Face, Drive, Back Plates Description Description 8-1/4 backplate 2-3/8 6 Spindle Thread Related products Chuck, 4 Jaw, Long Taper, L1, Diameter 12″, Horton Item # A5412L1 $395.00 Add to cart Chuck, 3 Jaw, Plain Back, Adjust Tru 10″ $249.00 Add to cart Chuck, 3 Jaw, Long Taper, L1, Diameter 12″ Skinner $149.00 Add to cart Chuck, 3 Jaw, Long Taper, L0, Diameter 10″ Made in China $249.00 Add to cart