Features 1、This product is used for tapping chuck with tap for machining internal thread hole on machine tool. It is mainly composed of tap chuck, chuck jacket, compression spring, steel ball and tap jacket. 2、The end surface of the jacket of the chuck is provided with a jaw which meshes with the spindle of the machine tool, and the sleeve handle of the jacket of the chuck is provided with a steel ball, spring and pressing screw which can transmit the power to the tapping chuck and at the same time act as an overload protection. 3、Professional equipment manufacturing, high accuracy. 4、The tapping capacity of the tapping machine is M3,M4,M5,M6-8,M10,M12. 5、Can be used in tapping machine, bench drill, rocker drill, drilling machine. Specification Item Type:Tapping Machine Chuck Tapping Capacity:M3,M4,M5,M6-8,M10,M12. Suitable Tap: M8 Tapping Standard: JIS Net Weight: 202 g / 7.13 oz(approx.) Package List 1 x Tapping Machine Chuck