Description B16 1 13mm Keyless Lathe Drill Chuck Self Tighten Drill Chuck Specification Material Alloy Type B16 Clamping range 1 13 MMItem Inner Diameter 15 733 MMItem Height 88 MMItem Outer Diameter 42 MM Features Good metal texture comfortable jacket surface easy to clamp so that the output torque becomes larger The unique thrust bearing facilitates the application of torque by the handle into a greater clamping force Practical design of the surface convex & concave so that before & after the set can effectively cope with & can reduce the shaking jacket Widely used along with various drill machines milling machines lathes boring lathes & electric hand tools Package Included 1 x Drill Chuck More Details