Features and Benefits:•Cuts through plastic quickly or easily.•Fits Dremel tools.The perfect cutter for recreating tab holes after welding bumper cover tabs. It helps give you that straight edge you need so that the bumper tab will snap in. 1/8" diameter shaft Tungsten Carbide Cutter bit for rotary tools (Dremel tool). The diameter of the cutter part is 1/8" (3.18 mm).