54Pcs Torx Star Spline Hex Socket Bit Set 1/2 3/8 Inch Drive Long Short Allen Key +25pcs Screwdriver Set Details Features: Durable: The bit set is made of chrome vanadium steel, which is durable and long using time. 54 in 1: The bit set consists of 54pcs different type of bit, which all are stored in a plastic box. Professional: 26pcs 75mm long batch, 26pcs 30mm short batch head and 2pcs connector can meet your needs in most cases, You could pick the right and suitable bit according the situation. .