With this Kit, plus ACRAGLAS and a vari-speed drill, you can do quick, easy, sure-to-hold repair jobs on cracked or broken stocks. Pins go in easily, won't further split the stock; cannot pull or shoot out; can be cut off at any length. Made of "half- hard" brass alloy. 60° flat-top threads for best holding. After broken surfaces are coated with ACRAGLAS and clamped tightly, drill pin hole with drill provided. Coat pin with ACRAGLAS also, and run it into hole with vari-speed drill at slow speed. After cured, cut off and dress ends.