FEATURES: Professional quality 3/8" drive, 1/4" drive ratchet handles; 1/4" & 3/8" x 3" extensions 32 SAE and Metric sockets 8 SAE hex key set Meet ANSI and ASME specifications

This professional hand tools set by Crescent has all the tools which a professional would most often need including 3/8" DRIVE: (1) 72-Tooth Quick-release Ratchet Drive; (1) 3" Extension; (16) 12-Point Sockets: 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm --- 1/4" DRIVE: (1) 72-Tooth Quick-release Ratchet Drive; (1) 3" Extension; (16) 6-Point Sockets: 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm; (1) 3/8" (Female) to 1/4" (Male) Adapter; (12) Combination Wrenches: 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 10mm, 12mm, 13mm, 14mm, 15mm, 17mm; (8) SAE Hex Keys with Holder; (1) Dura-Driver MAGNETIC Bit Driver; (12) 1" Driver Bits: Phillips, slotted, Torx, and hex.
The build quality of the tools is pretty sturdy; the tool box holds the tools quite steadily and the overall selection of tools is quite versatile, a worthy buy.