Gripping and opening with hex wrench.
for thread M14- M36, for Tapping collets size 3 automatic locking of the usages, with length compensation
for thread M5 - M22, for Tapping collets size 2 automatic locking of the usages, with length compensation
for thread M3 - M14, for Tapping collets size 1 automatic locking of the usages, with length compensation