SHAFT SRK WITH SHARK FINS

The Bonassi SRK shaft are made of Sandvik steel with heat treatment 48/50
HRC that makes them very tenacious even when they hit the hardest rocks. The peculiarity of this series is represented by the presence of shark-fin pins that are laser-welded in a non-through housing which avoids the presence of structural critical points.
All the shafts are equipped with 3 shark-fin pins, 2 of which are grouped together in a backward position while the last one is more distant and it is aimed to help loading the speargun only. All the fins have the hole for the passage
of the monofilament -max diameter 2.1mm- in order to offer a wider range of possibilities to the user. All are polished and finished by hand so as not to have abrasive edges that could damage the monofilament.