SHAFT SPORASUB 6.5x135 AMERICA ONE SS

These shark-fin model shafts are available in 6.5mm, 6.75mm, and 7mm thickness. Each sharkfin has a hole providing three options to connect the shooting line.  The shafts are made using 17-4PH heat treated stainless hardened to 47 Rockwell. The new barb is produced using the same steel (47Hrc) for increased strength. The hole for the pin that holds the barb in place-and the pin itself-are recessed completely so they don’t protrude from the barb. Thanks to this feature, the penetration in the flesh of the prey is greatly increased. The shark fins are produced by MIM (metal injection molding). The barb thickness is thicker than typical barb pins; the pin diameter is 2.1mm in the 6.5mm shafts, and 2.5mm in the 6.75 and 7mm spearshafts.  6.5mm dia. shafts feature a smaller barb, 6.75mm shafts feature a medium sized barb, while the largest barb is employed on the 7mm shafts.