The SK Hand Tool 3/8" Drive Semi-Deep Impact Sockets are designed to provide additional length to help with hard-to-reach areas. The nose down design provides even more convenience for hard-to-reach areas. The SureGrip Drive design drives the side of the fastener, not the corner, to provide increased strength and help avoid rounding of rusted or damaged fasteners. These tools are laser etched, high visibility markings for easy identification. The 1-2/3" long, semi-deep impact sockets provide added reach over standard impact sockets. Available separately or in sets, the 6 point design is also available in both fractional/SAE and metric sizes.