Socket Range: 4 mm to 15 mm (1/4" Drive), 6 mm to 20 mm (3/8" Drive), 10 mm to 27 mm (1/2" Drive). Socket trays allow you to sort your sockets in ascending order for quick and easy identification.3 Piece Set for 1/4", 3/8" and 1/2" Drive Sockets.
It contains a total of 65 pieces with a 1/4" hand driver and 3/8" drive size..and 3/8 in. It also includes plastic case for easy storage of the tools after use.