ATD Tools 13780 Ribe Bit Socket Set, 13 pc.

(13) Ribe Bit Sockets:M4 1/4" Drive (ATD-255)M5 1/4" Drive (ATD-256)M6 1/4" Drive (ATD-257)M7 3/8" Drive (ATD-258)M8 3/8" Drive (ATD-259)M9 3/8" Drive (ATD-261)M10 3/8" Drive (ATD-262)M11 3/8" Drive (ATD-263)M12 3/8" Drive (ATD-264)M13 1/2" Drive (ATD-265)M14 1/2" Drive (ATD-266)M15 1/2" Drive (ATD-267)M16 1/2" Drive (ATD-268)Includes 6-lobe ribe/polydrive bit socketsBits are made from S2 steel to meet or exceed torque specificationsSockets are made from heat treated chrome vanadium steel for strength & durability