Feature 1Various specifications, suitable for different size screws, meet the needs of daily use, easy to disassemble. 2Chrome vanadium steel material, surface electroplating treatment, anti-rust and delicate. 3Arc internal angle, increases the contact surface of the bit and the screw, easy to tighten or open the screw, increases the service life of the screw. 4Convenient storage and easy carrying, avoiding the sleeves being lost. 5Built-in non-slip slot, not easy to fall off and convenient to use.Condition: 100% Brand NewItem Type: Hex Bit SocketMaterial: Chrome Vanadium Alloy SteelColor: As picture shownMetric (mm):H1.5 H2 H2.5 H3 H4 H5 H5.5 H6 H7 H8 H9 H10 H12 H14 H15 H17 H19Imperial:H3/4 H11/16 H5/8 H9/16 H1/2 H7/16 H3/8 H5/16 H9/32 H1/4 H7/32 H3/16 H5/32 H1/8 H3/32 H5/64 H1/16Socket Square Head Size:1/2 inch (12.6mm), 3/8 inch (10mm), 1/4 inch (6.35mm)Sleeve Height:40mm/1.6in, 50mm/2in, 55mm/2.2in .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 List34 x Hex Bit SocketNoteMore convenient to be used with a wrench.