QUICK CHANGE TAPPING CHUCK MT4-WF20

MT4 Tapper for TC-820 (Bilz system #2) Tapping Collet holder
which is suitable for thread sizes 5/16″ to 3/4″(M8 to M22), chuck connecting diameter 1.22″(31mm).
Tension and compression feature allows taps to follow their own thread lead.
With extreme light compensation compression and tension operated by ball cage.