Grind off the hardened outer skin on used dirt track tires and create round, aggressive sipes to increase traction. Nail head disc, 8 Inch diameter, 5/8 Inch arbor hole.
Note: Use caution when handling and storing the nail head disc, pins are needle sharp. Safety.
Note: To prevent bodily injury the tire must be mounted on the car or secured in a tire holder. Eye and hand protection is required.
