The Jacob’s Plain Bearing Chuck is the worlds most widely used for medium or heavy-duty portable， bench or floor mounted power tools. This industrial quality chuck， with fully hardened and ground working components， offers exceptionally high accuracy， gripping power and durability. Medium duty models are available in a wide range of capacities for use on threaded or taper mounted spindles.

• Hammer capable
• T.I.R. 0.004 in. maximum at half capacity
• Chuck key included
• Plain bearing chuck
• Each chuck 100% inspected for performance and precision
• 0.040 in. minimum capacity
• 0.500 in. maximum capacity
• 33JT taper mount
• Uses key # K32