Drilling - Drill Chucks   Jacobs Chuck - Superior Drill Chucks Superior grip and accuracy have made Jacobs® the choice of drill users for more than 100 years. Jacobs is the world’s premier manufacturer of industrial drill chucks. All drill chucks shown are thread mounted. Please call for taper mounted chucks and other Jacobs® products. Jacobs® Multi-Craft® Duty Drill Chucks Model # Capacity Min - Max In Inches Threaded Mount Uses Key Price SM1G61 0.028 - 0.250 3/8" - 24 KG1 18.00 SM4G61 0.063 - 0.375 3/8" - 24 KG1 18.00 22BA-3/8 0.063 - 0.375 3/8" - 24 KK 50.00 22BA-1/2 0.063 - 0.375 1/2" - 20 KK POA 24BA-3/8 0.063 - 0.500 3/8" - 24 KK POA 26BA-1/2 0.063 - 0.500 1/2" - 20 KK POA SM1G61 $18.00 USD SM4G61 $18.00 USD 22BA-3/8 $50.00 USD     Jacobs® Plain Bearing Drill Chuck - Medium Duty Model # Capacity Min - Max In Inches Threaded Mount Uses Key Price 1BA-3/8 0.0000 - 0.250 3/8" - 24 K1 44.00 2BA-3/8 0.000 - 0.375 3/8" - 24 K2 68.00 31BA-3/8 0.040 - 0.250 3/8" - 24 K30 58.00 41BA-3/8 0.040 - 0.375 3/8" - 24 K30 64.00 33BA-1/2 0.078 - 0.500 1/2" - 20 K32 POA 1BA-3/8 $44.00 USD 2BA-3/8 $68.00 USD 31BA-3/8 $58.00 USD 41BA-3/8 $64.00 USD     Jacobs® Plain Bearing Drill Chuck - Heavy Duty Model # Capacity Min - Max In Inches Threaded Mount Uses Key Price 7BA-3/8 0.040 - 0.250 3/8" - 24 K7 59.00 32BA-1/2 0.040 - 0.375 1/2" - 20 K32 POA 35BA-1/2 0.156 - 0.625 1/2" - 20 K3 POA     7BA-3/8 $59.00 USD     Jacobs® Hand-Tite® Keyless Drill Chuck Model # Capacity Min - Max In Inches Threaded Mount Sleeve Type Price 31965 0.032 - 0.375 3/8" - 24 2 PC 46.00 31377 0.062 - 0.500 3/8" - 24 2 PC 45.00 32000 0.032 - 0.375 1/2" - 20 1 PC POA   31965 $46.00 USD 31377 $45.00 USD     Screwdriver Bit Adapter - Quick Change Model # Shank Size Threaded Mount Price QC-50 1/4" Hex 3/8" - 24 22.00 QC-51 7/16" Hex 3/8" - 24 27.00 Model QC-50 $22.00 USD QC-51 $27.00 USD     KTC263 Threaded Mini Chuck Model # Capacity Min - Max  In Inches Threaded Spindle Price KTC263 1/16 - 1/4 0.0625 - 0.2500 14" x 28 29.00