QUICK CHANGE TAPPING CHUCK BT40-WF12

With BT-40 shank and holder for TC-312 (Bliz system #1) tapping collet holder
which is suitable for thread sizes #0 to 9/16″ (M1 to M14), chuck connecting diameter 0.748″(19mm).
Tension and compression feature allows taps to follow their own thread lead.
With extreme light compensation compression and tension operated by ball cage.