62 piece set is made in the U.S.A., featuring SK's high polish SuperKrome® finish, which protects the tools from the harsh working environments found in today's workplace. All sockets feature SK's SureGrip® hex design, which drives the side of the fastener, not the corner, to avoid edge breakage which can occur on rusted or damaged fasteners when a traditional straight cornered hex tool is used.SuperKrome® finish provides long life and maximum corrosion resistanceSureGrip® hex design drives the side of the fastener, not the corner1/4" Drive - 4.5" Pro Ratchet; 2" and 6" Extensions; 3/8"F-1/4"M Drive Adapter; 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm