General description Drill Chuck B16 is a versatile keyless chuck designed for various applications including drilling machines, milling machines, lathes, and power tools. Its self-tightening feature enhances clamping capacity based on the applied force, making it efficient for both tightening and loosening tasks. Technical specifications Type: B16 Material: 45# steel Clamping Capacity: 0-13mm (1/2 inch) Inner Diameter: 15.733mm (0.61 inch) Outer Diameter: 40mm (1.57 inch) Length: 88mm (3.46 inch) Other information Package includes: 1 x Chuck