The GRIPEDGE Tools 9PC RPT Star Driver Set includes sizes T6 to T40, all in a 1/4» one size drive. Made of durable S2 steel material, these torx socket drivers have a lifetime warranty and a chrome finish for extra durability. The set comes in a compact package measuring 7.76 x 2.05 x 1.54 inches and weighs 8.4 ounces, making it easy to store and transport. Designed for automotive use, this set is compatible with fasteners ranging from 0.25 inches and is a reliable addition to any hand tool collection.