Sunex 221m 1/2-Inch Drive 21-mm Impact Socket

The SUNEX Tools 1/2 in. Drive 21mm 6-Point Impact Socket, Model 221M, is engineered for professional and industrial applications requiring reliable torque transfer and durability. This socket features a 1/2-inch drive and a 21mm socket size, crafted from high-strength chrome molybdenum alloy steel to withstand the demands of impact wrench and pneumatic tool use. Its six-point design ensures maximum contact with fastener flats, reducing the risk of rounding and providing a precise fit that minimizes slippage. The socket is machined to exacting tolerances and finished with an industrial black phosphate coating, offering excellent corrosion resistance for extended service life. High-visibility laser-etched dual size markings allow for quick identification even in low-light environments. Designed and manufactured to meet or exceed ANSI and ASME standards, this impact socket delivers consistent, safe performance. Backed by the SUNEX Tools lifetime warranty with no exclusions, the 221M model offers dependable quality and long-term value.

• Premium Impact Socket: 1/2 in. drive 21mm 6-point impact socket for professional and industrial applications
• 6-Point Design: Six-point geometry provides maximum contact with fastener flats, reducing rounding and delivering superior torque transfer
• 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