Engineered from high-speed steel for superior hardness and toughness, these adjustable round dies are ideal for creating new threads or re-threading existing ones. The dual-chamfered design allows for versatile application, including threading close to a shoulder. A fine pitch adjustment screw provides precise control by forcing the die sides apart or allowing them to spring together.

• Thread Size: 1-5/16-16 USS standard
• High-Speed Steel construction offers optimal hardness and wear resistance
• Adjustable design via fine pitch screw for precise thread sizing
• Dual-sided chamfer: 2 to 3 thread chamfer for general use and 1 to 1-1/2 thread chamfer for shoulder threading
• 2-1/2 inch outside diameter with a beveled slot for easy machine holder adjustment
• Versatile application for both creating new threads and re-threading existing ones