The hex shank is universal, and this socket with high hardness and wear-resistant features can meet various working environments. There is a square hole in the apron, and the square hole is inlaid with a pad to ensure a firm clamping, compatible with a hand electric drill. Made of high-quality alloy steel, this socket offers high hardness. Available in 8 specifications from M4 to M16, each with a length of 50mm and a shank diameter of 1/4-inch. Suitable for applications such as car repair, mold making, and manufacturing. Item Name: Tap Socket Material: Alloy Steel Specification: M4, M5, M6, M8, M10, M12, M14, M16 Shank Type: Hex Shank Handle Diameter: 1/4-inch Size 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 differences in lighting and screen settings, the item's color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement. Package Includes: 1 x Tap Socket