Contains (1) each of the following: OTC-1945A 35mm hex, OTC-1946A 38mm hex, OTC-1947A 41mm hex, OTC-1948A 33mm hex and OTC-1949A 1-1/2" hex. The metric sizes work on import truck Budd wheels, and the 1-1/2" hex is for American-made trucks with dual rear wheels. Extra-deep design lets you remove both nut and stud with just one socket. Useable with a 1" square drive impact wrench. Packed in a convenient storage box.