The NAP Endgame 100 Broadhead features an over-sized bone breaker tip for maximum penetration, 1 3/16 inch cutting diameter, and a single piece CNC machined grade 5 titanium ferrule. The X-lock 2 blade system ensures blade retention. The 0.031 inch thick razor sharp stainless steel blades are replaceable. Each broadhead is individually spin tested. A set of practice blades is included.