In blind hole tapping, it is often the case that the tap torque is increased and broken, and it is troublesome to take out the broken tap. Therefore, we have designed a safety tap chuck (see picture) that can be applied to lathes and drill presses. The spindle of the drill press rotates through the screw 3 to drive the drive sleeve 2. At one end of the drive sleeve 2, there are 8 uniform holes, and each of the holes is provided with a ball stud 7 which is held by the compression spring 1. Ball under normal torque
Industrial Overhead Door,Vertical Lifting Door,Vertical Sandwich Door,Industrial Overhead Lifting Doors
Dongguan HengTaichang Doors Co, Ltd. , https://www.dghtcdoor.com