This device is consisted of a tapping chuck and several tap collets. The chuck has compensating device for thread pitch. Collet chuck has overload torque protection device, which avoid tap breaking.
In order to get the different release torques for different diameter taps, just adjust nuts.
This device is most applicable to tap working on drill, lathe, boring machine, milling machine and CNC machine center and so on.
J45 tapping shank: BT40-GT12