BIG Daishowa tool from NCMT compensates for pitch errors
A new tool that compensates for synchronisation errors during rigid tapping by reducing the thrust load on both the tap and the workpiece by up to 90 per cent has been introduced by BIG Daishowa, Japan (NCMT).
Called Mega Synchro Tapping Holder, it is said to improve thread quality and increase tap life. Error compensation is facilitated through a novel mechanism that absorbs the pitch difference between tap and synchronous spindle.
The Mega Synchro is capable of supplying coolant through slits to the tap periphery, as well as through the tool. Its design allows for the tap holder to be isolated from the axial pressure of the coolant.
The holder is available in a variety of lengths and spindle interfaces, including BBT, HSK and Capto. Tool bodies in 41 varieties and 172 standard tap adapters offer a wide range of configurations.
See video here
