Black Diamond's Angle Piton is a type of piton used for hammering into wide cracks. It is specialized for relatively wide rock fissures where conventional thin-bladed pitons would not work, and provides high holding power through a spring effect created by bending the material. Features and Target Rock Fissures: For wide cracks where pitons such as Lost Arrows cannot be used. Material and Structure: Made of chromoly (chrome-molybdenum steel), featuring a spring effect created by bending the material.