Manufacturer Part Number (MPN) : 60-664The hybrid mechanical design of the BloodRunner provides a low 1 1/8in. profile in flight for field point accuracy, and expands to a full 1-1/2 inch cutting diameter on impact that stays open all the way through your target. Designed with two scary sharp 0.035in. thick stainless steel blades, the BloodRunner is strong enough to stand up to even the toughest targets. 100 Grain. 3 PK.