Jacobs 31090 Fluted Medium Duty Drill Chuck, 0.04 - 0.375 in, 1/2-20 Mount, Plain Bearing, K30 Key Number

Jacobs Drill Chuck, Fluted, Medium Duty, Series: 41BA 1/2, 0.04 - 0.375 in, Key Number: K30, Plain Bearing, 2-1/2 in Closed Length, 2.05 in Open Length, 1/2-20 Mount, 1.43 in Outside Dia