Each stripped bolt extractor set is made of high-hardness chrome-molybdenum steel for superior durability and longer life. It will easily extract damaged bolts, nuts, and screws, even if they are stripped, rusted, or frozen

The internal thread with reverse spiral flutes is designed to bite down for maximum gripping power. The more you turn, the tighter the bolt extractor socket set grips

The standard 3/8-inch square drive and hex adapter make the lug nut extractor set compatible with hand, air, or power tools

18 pieces 3/8 inch drive stripped lug nut remover includes 3/4"(19mm), 11/16", 17mm, 5/8"(16mm), 9/16", 14mm, 13mm, 1/2", 12mm, 7/16"(11mm), 10mm, 3/8", 9mm, 5/16"(8mm), 7mm, 1/4", hex adapter and knockout pin

The heavy-duty blow-molded case is for bolt remover and extractor organized storage and easy carry