Jacobs Chuck High Torque/High Precision Keyless Chucks with Shank, Jacobs R8

High precision keyless drill chuck - arbor is integrated into the internal socket of the drill chuck. This integrated design makes it impossible for the arbor and the drill chuck to become accidentally separated, providing a unit of greater rigidity and precision. As a result of its compact design, accumulated run-out is reduced to a minimum. Self-tightening feature automatically increases gripping force proportional to increased torque to prevent tool shank slippage. Right handed operation only

Attributes:

Capacity [Max] = 0.512 in, Capacity [Min] = 0.039 in, Chuck Size = 13 mm, Housing Diam = 1.89 in, Mounting = Jacobs R8, Overall Length [Max] = 3.54 in, Overall Length [Min] = 3.23 in, Type = Keyless Chuck, Used With = 20 mm Diameter Tool, Wt. = 56 oz. (1 EACH = 1 EACH)