This fine abrasive stick is radiused for easier ring deburring after end-gapping. Measures 4"L x 1/2" radius. Works on all types of rings and all ring IDs.
TECH TIP: Fine abrasive sticks work great for deburring the ends of piston rings after filing or any part that needs deburring. For a finer finish, soak the abrasive stick in Lapping Oil before use.