Description Specs Write a Review Over-sized Bone Breaker tip for maximum penetration Single piece CNC-machined grade 5 titanium ferrule X-lock 2-blade system ensures blade retention .031" thick razor-sharp replaceable stainless-steel blades Individually spin-tested Practice blades included 1 3/16" cutting diameter Blades: 2 blade Brand Label: Thunderhead Cutting Diameter: 1 3/16 Practice Head Available: Yes Weight: 100 grain