[ Easy To Use ] Our lug nut remover is designed with left-hand spiral for locking on to rounded ,damaged bolts for easy grip of stud, bolt or nuts. [ Every Size You Need ] This nut extractor set comes in sizes: 1/4, 5/16(8mm), 3/8, 10mm, 7/16(11mm), 12mm, 1/2, 13mm, 9/16(14mm), 5/8(16mm), 17mm, 11/16, 3/4(19mm). Can be used on SAE and Metric sizes [ Will Last In Time ] The lug nut extractor set is made from black chrome molybdenum that provides greater strength and durability and prevents corrosion. Our extractor socket set will be with you for years. [ Versatile Design ] The working end has a helical shaped flute to help grip rounded fasteners, round head bolts and pan head screws. You can use this bolt extractor set on different projects. [ Used With Multiple Tools ] 3/8 square drive of each bolt extractor tool can be used with flat wrench, pliers, socket wrench, adjustable wrench, Vise-Grip locking pliers, hand ratchets or impact wrench guns and air ratchets. Lifetime warranty