This Allen 29013 Wrench Set Combo 9PC includes nine essential tools designed for versatile fastening and maintenance tasks in sewing and industrial machinery. Each wrench is crafted for durability and provides a secure grip for effective use in various applications. Sizes: 1/4",5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/14".