Craftsman 6 Piece Bolt-Out Set Damaged Bolt/Nut Remover 3/8" Drive Black oxide coating prevents corrosion, while the blow molded case keeps the set organized Internal 3/8 and external hex drives give more grip than other brands Punch clears Bolt-Out, so its ready for the next job Six-flute helical design digs into bolts Expanded case allows the addition of filler set #52061