Feature:1. M20 Socket Set: Made of premium grade CRMO, black phosphate coating for enhanced durability. The tap socket is wear resistant, and for a long service life.2. Safe Locking Mechanism: M20 square tap socket features spring loaded detent ball system locks socket in place, ensuring safety and preventing drops.3. High Contrast Size Markings: M20 tap socket features permanent laser etched markings for easy reading, even in low light conditions.4. Reduced Wear and Increased Torsion: Rounded corner design reduces wear by applying force on fastener wall, not fastener corners. Specifically designed for use with impact drivers.5. For Tap Connection: Square tap socket is suitable for M20 metric machine taps, compatible with electric, pneumatic, or manual wrenches.Specification:Item Type: Square Tap SocketMaterial: CRMOSize: M20Application: Connect national standard machine tapsApplicable Equipment: Electric, pneumatic or manual wrench.Package List:1 x Square Tap Socket