The Muzzy Trocar Crossbow Broadheads feature a solid 1-piece SS ferrule and a right offset blade design for exceptional broadhead flight and consistency with right offset, right helical or straight fletching resulting in increased accuracy at longer range. Larger base diameter ferrule for crossbow bolts. .035" Thickness Right Helical SS Blades. 1 3/16” Cutting Diameter. The Trocar tip is known for bone breaking penetration, and the super short compact design for accurate flight and excellent entry and exit holes for increased blood loss and greater blood trails. The larger ferrule base diameter matches the larger diameter of crossbow bolts and the superior accuracy and consistency with high speed bolt setups make it perfect for long range accuracy.