The SIK F3 100 Grain Crossbow Broadheads are specifically designed for crossbows resulting in superior performance and field-point accuracy. They feature three 0.035 inch razor-sharp blades constructed of stainless steel for extreme strength and durability. The Core Cutting Technology features a unique winged offset blade design creating a gaping 1-3/16 inch cutting diameter. The blades are held in place by a solid knurled and threaded rear locking collar for superior strength and virtually indestructible design. The one piece all stainless-steel ferrule features a sleek, bone-crushing hybrid tip.