Speed up the process of breaking in foam tires for high bite dirt oval racing using the new-and-improved PRW carbon fiber tire grooving tool. With ergonomic construction and precision-angled teeth, this tool allows you to achieve proper "feathering" of the tire without having to run multiple battery packs, therefore saving equipment and drastically reducing the break-in period of the tire. Adjust the depth and degree of feathering based on the pressure applied and cutting angle you choose while cutting tires on your truer.

Tool is available as 5 teeth on one side, 4 on the other ("5-4"), as well as "7-5".