General description Teng T3839 Socket Set is a comprehensive 39-piece metric 3/8 inch drive socket set, designed for durability and efficiency. Manufactured from strong chrome vanadium steel, these sockets provide excellent torque while minimizing the risk of rounding fasteners. The set comes in a sturdy plastic case featuring a click lock and a folding handle for easy storage and transport. Technical specifications Material: Chrome vanadium steel Number of pieces: 39 Drive size: 3/8 inch Socket types: 6-point Socket sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22mm Deep socket sizes: 8, 10, 12, 13, 17, 19mm Spark plug socket sizes: 16, 21mm Extension bar length: 150mm Wobble extension bar length: 75mm Compatibility and accessories 1 x 3/8in Reversible Ratchet 1 x 3/8in Universal Joint 1 x 3/8in-1/2in Adaptor 1 x 3/8in Hex Bit Adaptor 2 x 1/4in Slotted Bits: 4 & 5.5mm 2 x 1/4in Phillips Bits: PH1 & PH2 2 x 1/4in Pozidriv Bits: PZ1 & PZ2 2 x 1/4in Hex Bits: 5 & 6mm 3 x