1、Standard Size: The thread die chuck has an outer diameter of 30mm and a maximum depth of 70mm, which facilitates the stable fixation of the chuck. 2、Surface Treatment: The surface of thread die chuck is hardened and blackened, which has strong oxidation resistance and is not easy to rust. 3、Carbon Steel: The thread die chuck is made of high hardness carbon steel with high density and long service life. 4、Wide Application: The thread die chuck is widely used in tapping machines, drilling machines, milling machines, boring machines, pneumatic tools, etc. 5、Easy Removal: The round threading die allows quick and easy installation and removal, saving your maintenance time when switching between applications. 1 x Thread Die Chuck1 x Hex Wrench Item Type: Thread Die ChuckMaterial: Carbon steelInterface Outer Diameter: Approx. 30mm / 1.18inMaximum Sleeve Depth: Approx. 70mm / 2.76in