2x Longer Life than Competition Includes(11) Twist Lock Cut-Off Wheels and (1) Twist Lock Mandrel For Cutting Metal and Plastic RYOBI introduces the 12 PC. Twist Lock Cutting Kit. Featuring the RYOBI Twist Lock Mandrel which helps secure the accessories during use and prevents the accessory from coming loose. This set provides 2x longer life than the competition and includes options for cutting metal and plastic. This set contains interchangeable bit bars. These bit bars are interchangeable with drill drive cases as well as the RYOBI Link Storage System. Expand your hobby and maker capabilities with these RYOBI accessories.