The thin wall design of chrome hand sockets are combined with the strength and durability of Grey Pneumatic impact sockets to create the Duo-Socket. This 22 piece set is built specifically to address the needs of the professional technician using hand tools, cordless impact tools and air tools. The Duo-Socket provides one socket for all applications. This set includes the following - 24 tooth quick release ratchet, 3 and 6 wobble extension and the socket sizes include deep fractional sizes of 3/8 inch, 7/16 inch, 1/2 inch, 6/16 inch, 5/8 inch, 11/16 inch, 3/4 inch, 13/1 inch, 7/8 inch, 15/16 inch, 1 inch, 1-1/16 inch, 1-1/8 inch, 1-3/16 inch, 1-1/4 inch, 1-5/16 inch, 1-3/8 inch, 1-7/16 inch and 1-1/2 inch.