HUNT Blackout 7 mm Shark spearshaft

The concept of Blackout shaft. It´s a shaft very strong, with top level finishing as well as all the Hunt shafts. Its name comes from the maximum stopping power on the fish (thanks to the ´true´ tricuspid point and the barb not recessed, if hit in its vital points you have more chances to kill the fish with one shot); maximum hold of the barb on the fish, penetrating as a double barb thanks also to the not sticking out welded pin. The barb is very heavy abnd since it´s ´under´, it alway open itself. Technical description of Blackout shaft: - The Blackout shaft is made in 17.4 PH rebored - Is made by 17.4 PH bars certificated by steelwork; straight and smooth - The Blackout shaft is C.N.C. machined - The Blackout shaft has 4 fins, 3 backwards and one for preloading for diameters 7, 7.5, 8 - The Blackout shaft stands out for fins position, like shark fin, at 60/90/120/360 mm from the bottom of the shaft. - The fins have no corners and are perfect both for dyneema use and for othe kind of wishbones - Shark fin tips are TIG welded and create a stiffening bridge on the shaft, inscreasing its balistic performances. - It´s a shaft for powerful spearguns, it has a sharpen tricuspid point and the 1.2mm thick barb, very strong and mounted with a special pin, high strength d. 2.5 mm TIG welded in a very accurated way. - The barb is very smooth and polished for fish integrity. - The welded pin allows to have the maximum hold because the welding itself creates a reticular connection between barb and pin, avoiding the ovalization of the hole, also with wide loads. - The barb is supplied ´mono under´ only and it does stick out as a recessed double barb. How to connect the line to the shaft Has a hole in the bottom part and a smoothed one on the preloading fin D. 2.5 at 360 mm from the bottom of the shaft (useful for ambush and roller).