The Blair Premium Spotweld cutters quickly remove spotwelds by cutting around the weld allowing the panel to be easily removed. They are precision ground tools with a thick cutter wall for extreme durability. Premium Spotweld cutters are for use in hand held drills and can also drill holes for plug welding a panel back on. Kit contains three 3/8" Rotabroach Cutters, arbor and extra pilots. Made in USA.