【Premium Specification & Durable Material】This 1/2" drive deep socket set includes 4 metric sizes (17 mm, 19 mm, 21 mm, 22 mm). Crafted from high-quality chrome molybdenum steel (CR-MO), the thin-wall 6-point sockets feature higher strength and toughness than ordinary steel—sturdy, corrosion-resistant, and hard to crack for long-lasting durability. 【High-Torque 6-Point Design】Engineered with a 6-point flank drive structure, the sockets apply force to the flat sides of fasteners instead of the corners. This design delivers exceptional torque, prevents fastener round-off and bolt detachment, and ensures a tight clamp to keep your work smooth and efficient. 【360° Scratch-Proof Protection】Equipped with detachable non-marring nylon sleeves and inserts, the sockets provide 360° protection for wheel rims, bolt tops, and lug nuts, avoiding scratches during use. Color coding and a sleek finish further enhance visibility and user experience. 【Wide Compatibility & Thin-Wall Advantage】The thin-wall construction allows easy access to narrow lug wells, making it suitable for both stock and aftermarket wheels. It works seamlessly with all 1/2"" drive power tools, air tools, hand wrenches, and torque ratchets, meeting various automotive maintenance and tire replacement needs. 【Easy Identification & Storage】Each socket is clearly laser-etched or stamped with its size for quick and accurate selection, saving your working time. All sockets come in a sturdy storage case that keeps them organized, protected, and easily accessible for on-the-go use. 【Premium Specification & Durable Material】This 1/2" drive deep socket set includes 4 metric sizes (17 mm, 19 mm, 21 mm, 22 mm). Crafted from high-quality chrome molybdenum steel (CR-MO), the thin-wall 6-point sockets feature higher strength and toughness than ordinary steel—sturdy, corrosion-resistant, and hard to crack for long-lasting durability. 【High-Torque 6-Point Design】Engineered with a 6-point flank drive structure, the sockets apply force to the flat sides of fasteners instead of the corners. This design delivers exceptional torque, prevents fastener round-off and bolt detachment, and ensures a tight clamp to keep your work smooth and efficient. 【360° Scratch-Proof Protection】Equipped with detachable non-marring nylon sleeves and inserts, the sockets provide 360° protection for wheel rims, bolt tops, and lug nuts, avoiding scratches during use. Color coding and a sleek finish further enhance visibility and user experience. 【Wide Compatibility & Thin-Wall Advantage】The thin-wall construction allows easy access to narrow lug wells, making it suitable for both stock and aftermarket wheels. It works seamlessly with all 1/2"" drive power tools, air tools, hand wrenches, and torque ratchets, meeting various automotive maintenance and tire replacement needs. 【Easy Identification & Storage】Each socket is clearly laser-etched or stamped with its size for quick and accurate selection, saving your working time. All sockets come in a sturdy storage case that keeps them organized, protected, and easily accessible for on-the-go use.