Astro 1828 ONYX 3/8" Nano Impact Wrench 450ft/lb Ideal for use in restricted spaces such as engine, transmission, and suspension work 3/8" model allows for the shortest profile possible when paired with 3/8" impact sockets 3 forward and 3 reverse settings Full length of less than 3-7/8" and incredibly light weight at 3lbs Compact yet powerful design at 450ft/lbs