The SIK F4 100 Grain Broadheads are the most accurate fixed blade broadhead on the market. These broadheads include four blades and an all laser-welded stainless steel construction. Featuring a 27 degree razor-honed blade angle, they produce a 1.350 inch cutting diameter and a 3.350 inch cutting surface. The SIK F4 is a field-point accurate broadhead.