Microjig GRR-Ripper Gravity Heel s, 5-Pack a convenient set of five gravity heels designed to enhance the performance of your GRR-Ripper. These gravity heels securely hook the tail end of workpieces and automatically retract mid-board, providing extra leverage to help push through cuts smoothly and prevent blow-out. They are i for improving your precision and safety when making rip cuts on a table saw, re-sawing on a band saw, face jointing on a jointer, and performing coping cuts on a router table. Please note that hardware is not included. This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Model Number: