Sunex 310d 3/8-Inch Drive 5/16-Inch Deep Impact Socket

The SUNEX Tools 3/8 inch Drive 5/16 inch 6-Point Deep Impact Socket, model 310D, is engineered for professional and industrial applications requiring reliable torque transfer and durability. This socket features a 3/8 inch drive and a 5/16 inch socket size, constructed from high-strength chrome molybdenum alloy steel to withstand the demands of high-torque impact use. Its six-point design ensures maximum contact with fastener flats, reducing rounding and providing secure engagement, while the precision machining enhances fit and minimizes slippage. The socket is finished with an industrial black phosphate coating that offers excellent corrosion resistance for extended service life. Designed specifically for use with impact wrenches and pneumatic tools, this socket meets or exceeds ANSI and ASME standards for performance and safety. High-visibility laser-etched dual size markings aid in quick identification even in low-light conditions. Backed by the SUNEX Tools lifetime warranty with no exclusions, this impact socket provides dependable service for a variety of demanding applications.

• Premium Impact Socket: 3/8 in. drive 5/16 in. 6-point deep 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