The Wheeler Engineering AR-15 Punch Kit includes everything you'll need for installing the bolt catch pin. The kit includes a starter punch and a finishing punch which are rubber coated to help prevent scratching your lower receiver. The Delta Series punch kit from Wheeler Engineering is designed to make the installation of the bolt catch pin a breeze. Pick one up today!Specifications and Features: Start bolt catch roll pin easily with starter punch Finish installation flush with the finishing punch Flat on one side for proper alignment