Features: Durable The bit set is made of chrome vanadium steel, which is durable and long using time. 40 in 1 The bit set consists of 40pcs different type of bit, which all are stored in a plastic box. One box for 40 types of bit to use. Portable Those bits are placed in order in the box. And you can carry the box anywhere conveniently with 40pcs bits together. Professional 19pcs 75mm long batch, 19pcs 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. Scope of application The bit set is suitable for outdoor and home using. The bit set is perfect for engineering, machinery, maintenance of household appliances, electric, pneumatic tools and other production lines. Specifications: Type: Torx Star Tool Kit Quantity: 40PCS/SET Material: Chrome Vanadium Steel Color: Blue Package: 14 Torx bits 14 Hex bits 10 Spline bits 2 Adapters for 3/8" & 1/2" drive SPETLEK 40Pc Allen Key Hex Torx Star Spline Socket Bit in Silver