Lunhoo 21mm Deep Impact Socket, 1/2” Square Drive, 6 Point Hex Impact Socket for Long Bolts, Lug Nuts and Scaffolding Tools, Chrome Vanadium Steel with Retaining Pin & O-Ring

• 21mm Deep Impact Socket: Designed for the effortless installation and removal of 21mm hex bolts, screws, lug nuts, axle shaft nuts, scaffolding bolts, and stubborn corroded fasteners
• Wide Compatibility: The 1/2" square drive ensures compatibility with all 1/2-inch drive tools, including electric/pneumatic impact wrenches, ratchets and breaker bars. With a total length of 77.5mm, it provides superior access to recessed spaces
• High-Quality Construction: Made of heat-treated Chrome Vanadium Steel (CR-V) with black anti-corrosion coating, these sockets offer high torque impact resistance, non-slip performance, and enhanced operational safety
• Retaining Pin & O-Ring Included: Designed for secure attachment to your tools, preventing dislodgement during high-vibration operation
• Versatile Applications: Widely used in automotive repair, steel scaffolding coupler, pipe clamps, industrial machinery assembly, and woodworking equipment maintenance. A reliable tool for mechanics, engineers, and construction workers

When you face a stubborn axle nut or a recessed bolt on the job site, this professional impact socket with a hex cavity and 1/2-inch drive, is the tool you can trust. Designed for high-torque impact and secure operation, it's the essential companion for tackling rigorous maintenance and repair tasks in automotive, industrial, and construction environments. Specification: Material: Chrome Vanadium Steel (CR-V) Color: Black Dimensions: Square Drive: 1/2 inch (12.5 mm) Hex Diameter: 21mm Total Length:77.5mm Product Includes: 1 x 21mm Deep Impact Socket 1 x Retaining Pin 1 x O-Ring Note: The included O-ring and pin serve as auxiliary retention features. Please note that some impact wrenches feature built-in locking mechanisms that provides sufficient socket retention on its own. The use of O-ring and pin is optional. Please use them based on your specific tool's design for optimal performance.