Sunex 421mss 3/4-Inch Drive 21-Mm Double Square Impact Socket

The SUNEX Tools 3/4 in. Drive 21mm 8-Point Impact Socket, Model 421MSS, is engineered for professional and industrial applications requiring reliable performance with square-head fasteners and pipe plugs. Constructed from high-strength chrome molybdenum alloy steel, this impact socket is designed to withstand the demands of high-torque impact use. Its eight-point square geometry provides a precision fit that reduces slippage and ensures secure fastener engagement. The socket features a durable black phosphate finish that offers excellent corrosion resistance for extended service life. Laser-etched dual size markings enhance visibility for quick identification, even in low-light environments. This impact-rated socket is specifically designed for use with impact wrenches and pneumatic tools, meeting or exceeding ANSI and ASME standards for impact sockets to ensure safe and reliable operation. Backed by the SUNEX Tools lifetime warranty with no exclusions, this socket combines durability and performance for demanding work environments.

• Premium Impact Socket: 3/4 in. drive 21mm 8-point impact socket for professional and industrial applications
• 8-Point Square Design: Eight-point square geometry engineered for square-head fasteners and pipe plugs
• CR-MO Alloy Steel: Constructed from high-strength chrome molybdenum alloy steel for maximum durability under high-torque impact use
• Impact Rated: Designed specifically for use with impact wrenches and pneumatic tools
• Lifetime Warranty: Backed by SUNEX Tools lifetime warranty with no exclusions
• Precision Fit: Machined to exacting tolerances for secure fastener engagement and reduced slippage
• Dual Size Markings: Features high-visibility laser-etched markings for quick identification even in low-light conditions
• Black Phosphate Finish: Industrial black phosphate coating provides excellent corrosion resistance for long service life
• Performance & Safety: Designed and manufactured to meet or exceed ANSI and ASME standards for impact sockets ensuring reliable, safe performance