Jacobs® Drill Chuck, Fluted Heavy Duty, Series: 34-33, 0.04 to 0.5 in Capacity, Key Number: K3, Plain Bearing, 3.52 in Closed Length, 2.74 in Open Length, 33JT Mounting, 2.04 in OD Jacobs® 14445 Drill Chuck, Fluted Heavy Duty, Series: 34-33, 0.04 to 0.5 in Capacity, Key Number: K3, Plain Bearing, 3.52 in Closed Length, 2.74 in Open Length, #33 JT Mounting, 2.04 in OD