Koken 120-50 5/16" Hex Shank x 3/8"Sq Socket Adaptor

Made in Japan, Highest Quality, Most Dependable Turns an impact driver into a 5/16"Dr impact wrench. Instead of buying individual nut drivers, the user is able to use the adaptor and standard sockets to achieve the same result.
120-50 5/16" Hex Shank x 3/8"Sq Socket Adaptor