Specifications:The bell-shape and magnetic insert allow the bit to hold the bit securely in place for quicker installations.Designed for long life and good durability for operating.Used in manufacturing assembly systems and others.Fits all power drills, cordless and amp, magnetic drivers sandblasted, vanadium steel bits.Quick release shank will save you time.Type: Nut Driver SocketMaterial: Cartoon SteelQuantity: 1PcFeatures: Convenient to Use, Durable, Power ToolsSize Details:6mm Size: 6mm x 65mm/0.24" x 2.56" (Approx.)7mm Size: 7mm x 65mm/0.28" x 2.56" (Approx.)8mm Size: 8mm x 65mm/0.31" x 2.56" (Approx.)9mm Size: 9mm x 65mm/0.35" x 2.56" (Approx.)10mm Size: 10mm x 65mm/0.39" x 2.56" (Approx.)11mm Size: 11mm x 65mm/0.43" x 2.56" (Approx.)12mm Size: 12mm x 65mm/0.47 x 2.56" (Approx.)13mm Size: 13mm x 65mm/0.51" x 2.56" (Approx.)14mm Size: 14mm x 65mm/0.55" x 2.56" (Approx.)17mm Size: 17mm x 65mm/0.67" x 2.56" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Nut Driver Socket