Feature 1Made of high quality chromemolybdenum steel for impeccable rustproof and anticorrosion properties, has high hardness. 2Hardening treatment for better durability, improves the rotation power and reduces wear. 3Manufactured with meticulous care, increases torsion for better working performance and efficiency. 4Drill bit with precise chamfer can ensure smooth inserting, and the printed size information on the socket can helps you get a quick recognition. 5Perfect hand tool for professional businessmen, mechanics or DIY enthusiasts, easy to carry out with the tool box.Item Type: Socket Screwdriver Bit SetMaterial: Chrome-Molybdenum SteelBit Color: BlackTotal Height: Approx. 78mm/3.1inBit Diagonal Size:T30: Approx. 4.70mm/0.19inT40: Approx. 6.20mm/0.24inT45: Approx. 7.90mm/0.31inT50: Approx. 8.60mm/0.34inT55: Approx. 9.60mm/0.38inT60: Approx. 12.7mm/0.50inT70: Approx. 15.2mm/0.60inT80: Approx. 17.2mm/0.68inT90: Approx. 19.5mm/0.77inT100: Approx. 20.8mm/0.82inSquare Socket Interface Size: Approx. 1/2inApplication:Suitable for any air impact/power bar, etc. with 1/2insquaredrive interfaceRepair tool for home, automobile, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List10 xSocket Bit1 x Blue Tool Box