Premium Impact Socket: 3/8 in. drive 15/16 in. 12-point universal impact socket for professional and industrial applications 12-Point Design: Twelve-point geometry allows socket engagement at every 30 degrees for easier access in tight spaces 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