SK HAND TOOL 47 Piece 12 Point Socket SuperSet 1/2" Drive SK4147 47 Piece 1/2" Drive Chrome Socket SuperSet 47 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 patented 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. 10.3" Pro Ratchet, 2" and 5" Extensions; 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1 1/16", 1 1/8" 12 Point Standard Fractional Sockets; 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16 12 Point Deep Fractional Sockets; 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 23mm, 24mm 12 Point Standard Metric Sockets; 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm 12 Point Deep Metric Sockets; in a molded plastic case.