The all-new PileDriver Pass Thru Extreme “Small Diameter” provides ultimate penetration and knockdown power. Designed with an ultra-slim profile and innovative PTX half-out insert, this shaft increases accuracy by reducing the impact of crosswind drift, and maximizing downrange kinetic energy for deadly performance. The carbon steel PTX weighs in at 44-grains and delivers 4x more kinetic energy than traditional aluminum inserts and 2x more kinetic energy than traditional micro-diameter inserts. The lightweight 2-inch NRG-2 vanes increase speed to help deliver pinpoint broadhead accuracy. The PileDriver Pass Thru Extreme is designed for the archer who wants maximum penetration in a small diameter arrow design and demands Carbon Express precision manufacturing for greater accuracy. All PileDriver series 12-pack sets are sorted and matched for best-in-class consistency with a weight sorting tolerance of +/- 2.0 grains. Every PileDriver series shaft is laser checked for straightness to a remarkable 1/10,000 of an inch so you know the PileDriver straightness of +/- 0.0004-inches is a maximum measurement, not an average. Other PileDriver Pass Thru Extreme features include the TCX nock for consistent arrow release and the high-polish finish for a quiet draw on the arrow rest and easy removal from target. The Carbon Express 50759 PileDriver Pass Thru Extreme is sold as a 12-pack of shafts. Items specifications: 350-Size, 10.32-GPI, 0.330-inch Spine and 0.272-inch Diameter. To gain the advantage in the field, you need the best equipment, which is why so many hunters, competitors and enthusiasts insist on the Carbon Express brand. If you have the passion, Carbon Express will continue to innovate the industry in accuracy, recovery and performance to provide the finest arrows, broadheads, crossbows, crossbolts and archery accessories.