Shop Vertex 1/8-5/8" R8 Keyless Drill Chuck w/ Integrated Shank - 3701-1625 crafted by Penn Tool Co. to deliver unmatched reliability. Empower your manufacturing with precision toolsget started today *Keyless Drill Chuck Clamping Range: 1/8 - 5/8 (3-16mm) *Shank type: R8 Integral Shank. 0025″ Runout The integrated design can ensure the stability and accuracy of the product to the greatest extent Heat-treated alloy steel provides wear resistance and strength You will receive: 1 pcs Keyless Drill Chuck and 1 pcs APU16 Spanner Wrench Drill Chuck 1/2-20 Mounting Industrial Drill Chucks Lzcdelyxiao R8 Drill Chuck, 1/8-5/8 (3-16mm) Heavy-Duty Keyless Drill Chuck With R8 Integral Shank, Drawbar Thread 7/16-20 And APU16 Spanner Wrench Self-tightening Drill Chuck Drill KEYLESS DRILL CHUCK & ARBOUR - 5-20mm R8 - Tools Shank thread size: 7/16-20 , *Accuracy: 0., 005 . Product name: Keyless Drill Chuck (Self-tightening Drill Chuck) Keyless Drill Chuck Clamping Range: 1/8 - 5/8 (3-16mm) Shank type: R8 Integral Shank Shank thread size: 7/16-20 Accuracy: 0., 005 . Lzcdelyxiao R8 Drill Chuck, 1/8-5/8 (3-16mm) Heavy-Duty *Feature: The integrated design can ensure the stability and accuracy of the product to the greatest extent