For drilling out spot welds on most vehicle panels For drilling out spot welds on most vehicle panels Contents:1pc 5/16 (8mm) spot weld cutter1pc 3/8 (9.5mm) spot weld cutter2pcs 3/8 (9.5mm) replacement cutter head2pcs 5/16 (8mm) replacement cutter head2pcs spare drill pin1pc Hex shank wrench