Drill America DWTSR112-51640 5/16"-40 threading die

Threading die for 5/16"-40 threads

The Drill America DWTSR112-51640 is a high-speed steel round adjustable die designed to cut external threads on rod or pipe. It produces a 5/16"-40 thread form with a 1-1/2 inch outside diameter. The tool is supplied new and carries a California Proposition 65 warning for chemicals linked to cancer and reproductive harm.

Suited for adjustable thread cutting

Machinists and maintenance technicians who need to create or repair 5/16"-40 threads will find this die suitable. The adjustable design allows the user to widen or narrow the thread fit for different classes of engagement. It is not intended for buyers who require a fixed-size die, a different thread pitch, or a die head compatible with a specific proprietary holder not described in the specifications.

Installation uses standard die stocks

The die fits standard 1-1/2 inch round die stocks or machine holders. One face has a 2 to 3 thread chamfer for starting threads; the opposite face has a 1 to 1-1/2 thread chamfer for threading close to a shoulder. Adjustment is made via a fine-pitch screw that forces the die halves apart or lets them spring together; the slot is beveled so the screw can be removed when the die is mounted in a holder with its own adjusting screws.