The BloodRunner 2-Blade is the ultimate combination of fixed blade reliability and mechanical technology. The low profile design provides superior flight characteristics for field point accuracy, then opens to a devastating 2 1/16" cutting diameter upon impact for massive wound channels and faster recoveries. The design of this head insures that the broadhead will cut in either the open or closed position, making it the most reliable mechanical broadhead on the market today. The Deep Six model is designed for use with the Deep Six insert system only and will not work with standard arrow inserts.