SHAFT TRK WITH PINS – BONASSI

The Bonassi TRK Shaft are made of Sandvik steel with heat treatment 48/50
HRC that makes them very tenacious even when they hit the hardest rocks.
All the shafts are equipped with 2 pins which are grouped together in a backward position.
On the backward position, into the shaft body, there is one hole for the passage
of the monofilament -max diameter 2.1mm