Description:The hex shank is universal, and this socket with high hardness and wearing feature can meet various working environments.There is a square hole in the apron, and the square hole is inlaid with a pad to make the clamping more firm, and it can be used with a hand electric drill.Made of high-quality alloy steel, this socket has high hardness.There are 8 specifications for your choice from M4 to M16. Their length is 50mm, and the shank diameter is 1/4-inch.It is suitable for car repair, mold making, manufacturing, etc.Item Name: Tap SocketMaterial: Alloy SteelSpecification: M4, M5, M6, M8, M10, M12, M14, M16Shank Type: Hex ShankHandle Diameter: 1/4-inchSize Details: Socket Length: 50mm/1.97" (Approx.)Shank Diameter: 1/4"M4: 5cm x 0.4cm x 0.4cm/1.97" x 0.16" x 0.16" (Approx.), Used Tap Edge Length: 0.3cm/0.12" (Approx.)M5: 5cm x 0.5cm x 0.5cm/1.97" x 0.2" x 0.2" (Approx.), Used Tap Edge Length: 0.4cm/0.16" (Approx.)M6: 5cm x 0.6cm x 0.6cm/1.97" x 0.24" x 0.24" (Approx.), Used Tap Edge Length: 0.48cm/0.19" (Approx.)M8: 5cm x 0.8cm x 0.8cm/1.97" x 0.31" x 0.31" (Approx.), Used Tap Edge Length: 0.5cm/0.2" (Approx.)M10: 5cm x 1cm x 1cm/1.97" x 0.39" x 0.39" (Approx.), Used Tap Edge Length: 0.6cm/0.24" (Approx.)M12: 5cm x 1.2cm x 1.2cm/1.97" x 0.47" x 0.47" (Approx.), Used Tap Edge Length: 0.7cm/0.28" (Approx.)M14: 5cm x 1.4cm x 1.4cm/1.97" x 0.55" x 0.55" (Approx.), Used Tap Edge Length: 0.9cm/0.35" (Approx.)M16: 5cm x 1.6cm x 1.6cm/1.97" x 0.63" x 0.63" (Approx.), Used Tap Edge Length: 1cm/0.39" (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 Tap Socket