This WorkPro 122-Piece Mechanics Tool Set equips you with everything you will need for the job. This Mechanic Set is ideal for the Professional on the job that wants to get the job done right. Whether you are on the job site tightening lag bolts or in the automotive shop repairing a car, our product offering will provide you with the tools you need to complete your task.Set Includes 1pc 1/2" Dr. Ratchet Handle,1pc 3/8" Dr. Ratchet Handleand 6pc 1/2" Dr. Sockets (6-Pt.),with SAE 13/16", 7/8", 15/16",Metric 20, 21, 22 MM and 10pc 3/8" Dr. Sockets (6-Pt.) with SAE: 1/2", 9/16", 5/8", 11/16", 3/4",Metric: 15, 16, 17, 18, 19 MM also included 1pc 3/8" Dr. 5/8" Spark Plug Socket,1pc 3/8" Dr. 3" Extension Bar and 1pc 3/8" Dr. Female to 1/4" Male Adapter.