Feature: 1. Integrated design, possess high accuracy, small size, light weight, convenient operation, suitable for all kinds of lathes, milling machines, drilling machines 2. Come with high accuracy, strong clamping performance, high efficiency and stability, improve processing efficiency 3. The product possess self‑tightening performance to prevent the cutting tool from slipping during use 4. Possess strong clamping capacity, more convenient faster loading and unloading 5. Can be used to clamp straight shank drills, straight shank milling cutters, center drills, straight shank reamers and other straight shank tools and cutting tools Specification: Item Type: Drill Chuck Model: 1-16mm-MTA3Material: 40Cr Accuracy: 0.08mm Clamping Range: Approx. 1 ~ 16mm / 0 ~ 0.6in Hardness: 40° Maximum Taper Diameter: Approx. 24mm / 0.9in Function: Used to clamp straight shank drills, straight shank milling cutters, center drills, straight shank reamers and other straight shank tools Applicable: Product applicable to various cutting equipment, lathes, drilling machines, milling machines, chain machines and CNC machine tools in the machining industry. Package List: 1 x Drill Chuck