Ko-ken 4289M 1/2 Sq. Dr. Socket set 12 point 18 pieces This socket set is carefully selected for 1/2 inch (12.7 mm) of frequently used insertion angles. This set includes a variety of industries, including the maintenance maintenance maintenance of industrial machinery, and the automotive maintenance industry. Sockets Hex (mm) 4400M 8 10 12 13 14 17 1921 22 24 27 30 32 Accessories Ratchet Handle 4753N Extension Bar 4760-125/250 Spinner Handle 4768N-450 Universal Joint 4771 18pc. s. set