ARUCMIN 3/8 Inch Drive Extra Long Ball End Hex Bit Socket Set,20-Piece SAE & Metric Allen Socket Set 3mm to 10mm & 1/8-3/8 Inch S2 Steel Bits

【DURABLE S2 Material】: The bit socket head is made of S2 alloy steel, which is strong and has good toughness, not easy to break.It is not easy to wear and has good corrosion resistance. More durable,meet and exceed ANSI standards. 【BALL END DESIGN】: Each bit head has a unique ball end design, which allows the bit socket to be inserted into the fastener from multiple angles. It can flexibly avoid obstacles to reach the fasteners, which is more convenient and practical. 【EXTRA LONG BIT SOCKET】: Extra long bit and sockets reach fasteners in the deepest recesses and tightest spot. More convenient to use in narrow Spaces. It saves you money on the extension bar. 【HEAT TREATMENT CR-V】: The socket base is made of chrome vanadium steel with stronger hardness after heat treated and provides higher torque.The surface is mirror chrome plated,and the E-Torx Sockets with manganese phosphate coating are more anti-corrosive and anti-rust than Black oxide coating, extending the service life. 【EASY to IDENTIFY & 20-PIECE】With a storage toolbox, easy to carry. Specifications are clearly printed on the tool box and socket, which is convenient for identification and sorting, saving your time.3/8" Drive: Metric: 3, 4,4.5,5,5.5,6,7,8,9,10mm, SAE: 1/8,5/32,3/16,7/32,1/4,9/32,5/16,3/8in, Universal Joint x 1, 1/2"to3/8" adapter x 1., Manufacturer: ARUCMIN