The Muzzy Trocar HBX is a hybrid that combines the reliability of a fixed blade and the impressive cutting diameter of an expandable. The Trocar HB features a proven Steel ferrule with chisel tip and offset fixed blades that induce spin. The fixed blade portion sees a 1" cutting diameter, however the expandable portion opens up to 1 5/8" for impressive wound channels. The Muzzy Trocar HBX's are specifically designed for crossbow use and come in packs of 3.