I have been using the Tapmatic 50x on the Syil SX3 with success. Even with the small collet though you can only go down to shank size of 3.5mm.
According to their web site their 30x model will take shanks down to just over 1mm but then limits you on larger sized taps.
The system works very well but the unit and collets are expensive unless you can pick them up second hand. I have found this unit works better than the built in tapping function of the SX3 which often stripped threads for me.