Bison Adapter Back Plate for 15-3/4" Self Centering Lathe Chucks L1 Mount

Bison Adapter Back Plate for 15-3/4" Diam Self Centering Lathe Chucks L-1 Mount, 4-1/8" Through Hole Diam, 6-3/4" ID, 11-3/4" OD, 0.87" Flange Height, Steel

Manufacturer Part #: 7-879-9163