Dead Ringer Trauma 100gr 2-Blade Adjustable Broadhead is made of aircraft grade T6 aluminum ferrule and is the toughest in the industry. It is designed from the same material used in NASCAR rear axles. The chisel design trocar tip shatters bone on contact and the adjustable cutting diameter adjusts with a simple set screw. Uniquely designed double bevel hand sharpened blades with a cut diameter of 2-1/2 inches to 3-1/8 inch. The blade thickness is .032 inches.