Features and Benefits:

• Includes: standard: 3/8 in., 7/16 in., 1/2 in., 9/16 in., 5/8 in., 11/16 in., 3/4 in., 13/16 in. 7/8 in., 15/16 in., 1 in., 1-1/16 in., 1-1/8 in., 1-3/16 in., 1-1/4 in., 1-5/16 in., 1-3/8 in., 1-7/16 in., 1-1/2 in.; deep: 3/8 in., 7/16 in., 1/2 in., 9/16 in., 5/8 in., 11/16 in., 3/4 in., 13/16 in., 7/8 in., 15/16 in., 1 in., 1-1/16 in., 1-1/8 in., 1-3/16 in., 1-1/4 in., 1-5/16 in., 1-3/8 in., 1-7/16 in., 1-1/2 in.; 1/2 in. drive U joint
• 12-point design means less wear on fasteners
• Cr-Mo alloy steel for long life
• Packaged in heavy duty blow mold case

This is an impact Socket set. It has 39-Piece. Sockets are 1/2 in. drive and 12-point.