Ideal Tire Groover Regroover #3 5/32" Square Standard Duty Blades 18 Pcs Tire Regroovers are constructed for easy, efficient, and long-lasting operation. The solid brass head keeps strong, constant heat on the tire groover tool, which rapidly heats the material to be cut. The depth of the cut is controlled by the adjustable tire grooving blades kit. The brass heads and razor-sharp tire regroover blades are available in nine different widths