Easton Axis 5mm carbon arrow shafts are designed to deliver increased penetration, improved wind resistance, and consistent accuracy for serious bowhunters. The micro-diameter 5mm profile focuses kinetic energy into a smaller frontal area, reducing friction as the shaft passes through the target and helping broadheads penetrate deeper. Constructed with high-strength Acu-Carbon™ fibers, Axis 5mm shafts provide reliable spine consistency and durability. Each shaft includes a 5mm 8-32 HIT insert system to strengthen the front end and ensure proper broadhead alignment, along with pre-installed 5mm X Nocks. Made in the USA. Available Sizes: 200, 260, 300, 340, 400, 500, 600, 700