Bar Pull Shank: 25 MM Diameter, 1-3/8" Thread.
Dunham Bar Pull Shanks are available in 9 shank diameters, and are clamped in a lathe turret in the same manner as a boring bar. Grippers are then hand turned onto the shank thread or onto an adapter that can be attached to the shank for smaller diameter grippers.
*Selection of a Bar Pull Shank should be specified to the size of the boring tool holders being used.
*See "Bar Pull Gripper Chart" for Adapter and Shank Options