Rage Hypodermic Trypan Crossbow 100gr Expandable Broadhead - 3 Pack - The Rage 100-grain Hypodermic Trypan Crossbow features a needle-like, streamlined titanium ferrule and 2-inch cutting diameter, that creates an oversized slap-cut entry hole. The Trypan Crossbow’s .039-inch-thick razor-sharp stainless-steel blades slide into a sweptback blade-angle configuration, and despite the fact that the blades deploy to a monstrous 2-inch cutting diameter, the broadhead has just a 3/4-inch diameter in-flight profile.