The SK Hand Tool 1/4" Drive Impact Sockets are laser-etched, high visibility for easy readability. Standard, deep and swivel options are available for various applications. These tools are available in 6-point metric sizes for standard and deep lengths, and 6- or 12-point metric and fractional sizes for swivel sockets. Available spearately or in sets, these tools feature a SureGrip Drive design to increase strength and avoid rounding of rusted or damaged fasteners. These tools are coated with a rust-preventative compound for extreme corrosion resistance.