VAN Alstine V100 Tire Groover,grooving Iron,racing,dirt Modified,off-road, Part# V-100 Designed to be fast, smooth, & easy, the V-100 is perfect for cutting grooves from 1/32" to 1/2" Glides over the tire surface Gives a precise, consistent cutting depth; virtually automatic Cuts with less heat than most groovers, which prevents heat degradation to race tire surface Unparalled control