Solid 3 In. (inch) shaft nut driver, chrome plated rust-resistant shafts and forged precision sockets. Black handles with striped color coding for easy size identification. Set includes 1 each: 3/16 In., 1/4 In., 5/16 In., 11/32 In., 3/8 In., 7/16 In., 1/2 In.