SuperKrome finish provides long life and maximum corrosion resistance. SureGrip hex design drives the side of the fastener, not the corner. Packaged in a secure and portable storage case. Made in the U.S.A. Lifetime warranty25 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. Provides long life and maximum corrosion resistance. 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. Set includes the SK SuperKrome Professional Ratchet featuring a completely enclosed ratcheting mechanism which is easy to remove and replace for cleaning or rebuilding. Triple tooth contact provides smooth  ratcheting action with little back movement. Professional series ratchets also feature hardened pawl and teeth for durability and long life. Diamond knurled grip provides sure handling, even when oily. Chamfered ends help lead the socket over fastener heads. Set also includes a SuperKrome sliding T-handle providing improved access to hard to reach areas, and some SuperKrome extensions. Set includes: 12 point socket sizes: 7/8", 15/16", 1", 1-1/16", 1-1/8", 1-3/16", 1-1/4", 1-5/16", 1-3/8", 1-7/16", 1-1/2", 1-9/16", 1-5/8", 1-11/16", 1-3/4", 1-13/16", 1-7/8", 2", 2-1/8" and 2-1/4"; 3/4" drive Pro Ratchet - 18"; 3/4" drive sliding T-handle - 18"; 3/4" drive extensions - 3", 8", 16". Packaged in a blow molded case.