Bilz [lmt] unveiled latest range of products during emo 2007 including synchro-chucks with reciprocating action that compensate for synchronisation errors in thread tapping. Modern cnc machines are helped by the synchronization between feed and speed of rotation in case of manufacturing manufacture threads without a compensating chuck. Synchronization errors arise particularly when the machine spindle has to change direction for tapping cored holes and result in increased axial and radial stresses with a negative effect on service life of the tap drill and on thread quality when rigidly clamped tap drills are used. The bilz [lmt] latest synchro-chucks are available with salient features like reciprocating action from compensate for these synchronization errors and axial errors; high quality engineering to guarantee best thread quality together with optimum tool life; and useful for both conventional tap drills and special, synchronous tap drills. These synchro-chucks have therefore made direct tapping of threads into pre-cored holes easy.
