The trocar hb and hbx both feature 0.035-inch-thick surgically sharp stainless steel mechanical blades that stay tucked in tight to the solid-steel ferrule in flight, but they deploy reliably with a 1 5/8 expandable cutting diameter.The fixed blades are also 0.035-inch thick and have a cutting diameter of 1.They have an offset for increased accuracy and stability.The total cutting diameter of the hb and hbx is 2 5/8.The trocar hb and hbx feature a bone-crushing chisel tip.Model: Trocar HBXWeight: 100 grQuantity: 3 Per Pack