Sunex 521MSS 1" Drive Double Square Impact Socket 21mm

Product Description The SUNEX Tools 1 in. Drive 21mm 8-Point Impact Socket, Model 521MSS, is engineered for professional and industrial applications requiring reliable performance under high torque. Constructed from high-strength chrome molybdenum alloy steel, this impact socket is designed to withstand the demands of impact wrenches and pneumatic tools. Its 8-point square geometry is specifically crafted for square-head fasteners and pipe plugs, ensuring a precise fit that reduces slippage and enhances engagement. The socket features a durable black phosphate finish that provides excellent corrosion resistance, extending its service life in challenging environments. High-visibility laser-etched dual size markings allow for quick identification even in low-light conditions. This impact socket meets or exceeds ANSI and ASME standards, reflecting its commitment to performance and safety. Backed by the SUNEX Tools lifetime warranty with no exclusions, this socket offers long-term reliability for users seeking consistent quality and durability. From the Manufacturer This Sunex 1-inch drive x 21mm double square impact socket will give you years of usage. It comes with a lifetime warranty which backs the craftsmanship of this CR-MO alloy steel product. It will meet your needs and is at a great value.

• Premium Impact Socket: 1 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