Durability You Can Trust: Crafted from premium CR-V alloy steel and heat-treated for extra toughness, this impact socket set handles high-impact torque without damaging. The black phosphate finish shields against water, oil, and rust Enhanced Repair Efficiency: The 6-point socket design increases contact area with fasteners for a stronger grip. This reduces wear, avoids rounding of corners, and ensures bolts stay locked in placeeven when using high-torque impact wrenches Easy-to-Read Size Markings: With laser marking, this impact socket set ensure clear visibility, allowing you to quickly identify the right socket even under dim lighting, such as beneath a vehicle Effortless Storage & Portability: A sturdy carrying case keeps your impact socket set neatly organized and secure