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This paper introduces a kind of my factory imported from the United States, for new tapping chuck has three functions of common drilling machine. The tapping chuck is compact in structure, flexible chuck is unique, can according to the specific situation of tapping setting torque, attack to the required depth can be automatic idle, and can automatically return, to ensure efficient, safe maneuvering tapping. The working principle of the three functions of the tapping chuck: 1 tapping: rubber spring chuck tap into the corresponding 25, clamping block adjustment screw 27 defined tap position, and made into a double-head reverse screw. The screw, floating clamping block 28 tap head clamp and slightly floating, to adjust the tap is not concentric clamping

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This paper introduces a kind of my factory imported from the United States, is used to model attack socks chuck with three function of common drilling machine. The child against garlic chuck structure compact, flexible chuck is unique, according to specific circumstances and thick rice dumpling with torque, attack to the required depth can be automatically empty mussel, and can automatically return, to ensure efficient, safe and good maneuvering consumption. The working principle of three functions of the tapping forest chuck: 1 attack garlic: paint on the male into the corresponding