23 Piece, 1/2" Drive Deep Socket Set, Lockable Stacking Cases, Durable Transparent Lid, 72 Tooth Quick Release Ratchet, Exceeds ANSI Specifications, Removable Internal Tray, Knurled Beauty Rings For Hand Tightening Applications, Includes: 1/2" Drive 72 Tooth Quick Release Ratchet, 1/2" Drive 6-Point SAE Sockets: 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16" & 1", 1/2", Drive 6-Point MM Sockets: 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 21mm, 22mm & 24mm, 1/2" Drive 5" Extension.