CR-MO alloy steel for long life. Heavy-duty blow molded storage case.

Set includes:
7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 15/16″, 1″, 1-1/16″, 1-1/8″,1-1/4″