A single bevel design means blades are sharpened from only one side, resulting in a devastating spiral wound channel upon impact.  The Shift SB is designed for superior strength and optimum arrow flight, toting a razor sharp, cut on contact blade that stays sharp even after penetrating hide and bone.  The Shift SB broadhead line was designed to achieve fine-tune adjustability via the 25grain tungsten collar, which allows the archer to "shift" the weight of their arrow setup. The .044" blade and robust ferrule design results in increased durability and devastating results on any big game.