The Channellock 139-Piece SAE and Metric 6-Point Combination Ratchet & Socket Set offers a versatile, multi-drive design with easy identification using color bands that distinguish between SAE and Metric measurements. Made from durable chrome vanadium steel, this set is built for lasting performance and comes with a lifetime warranty. The sockets are securely stored in a well-organized, durable hard carrying case for easy access and transport. Set includes: 1/4" drive 6-point sockets - 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 5mm, 6mm, 7mm, 8mm, 10mm, 12mm; 3/8" drive 6-point sockets - 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 5mm 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 17mm, 18mm, 19mm, 21mm, 22mm; 1/2" drive 6-point sockets - 1/2", 9/16", 5/8", 3/4", 7/8", 1", 1-1/8", 12mm, 13mm, 14mm, 15mm, 17mm, 18mm, 19mm, 21mm, 22mm, 24mm, 27mm; 1/4" drive 6-point deep sockets - 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 5mm, 6mm, 7mm, 8mm, 10mm, 12mm; 3/8" drive 6-point deep sockets - 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 17mm, 18mm, 19mm, 22mm; 1/2" F x 3/8" M 1/2" drive adapter; 3/8" drive spark plug socket - 5/8", 13/16"; 1/4" drive extension - 3"; 3/8" drive extension - 3", 6"; 1/2" drive extension - 3", 6"; ratchet handles - 1/4", 3/8", 1/2" drive; universal joints - 3/8", 1/2" drive; 1/4" drive spinner handle; 1/4" drive coupler; bits with holder - #1, #2, #3, 1/8", 3/16", 1/4", SQ1, SQ2, T10, T15, T20, T25, 3/16" hex, 1/4" hex, 5/16" hex, 3/8" hex, 5mm, 6mm, 8mm, 10mm; combination wrenches - 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4", 8mm, 10mm, 12mm, 13mm, 14mm, 15mm, 17mm; hard carrying case.