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The VALUE COLLECTION 315-3189 is a round threading die designed to cut external threads on rod, bolt stock, and cylindrical workpieces. It produces a 3/4-28 thread profile with a right-hand helix and is machined from high-speed steel (HSS) for durability across repeated use in production and maintenance environments. The 2-inch outside diameter fits standard round die stocks of that size. An adjustable design allows the cutting diameter to be fine-tuned for thread fit and to compensate for tool wear. Machinists, pipefitters, and maintenance technicians use this die for both new thread cutting and chasing damaged threads.
This die is suited for threading mild steel, aluminum, brass, and similar machinable materials in shop or field settings. The 3/4-28 specification is a unified fine (UNF) thread commonly found in firearm barrels, precision instrument components, and specialized mechanical assemblies. The right-hand thread direction is the standard for the vast majority of fastener and fitting applications. It is appropriate for low-volume production runs, repair work, and custom fabrication where a hand-operated or bench-mounted die stock is used.
Designed for use in standard round die stocks accepting a 2-inch outside diameter die. Confirm die stock compatibility before use.
This die is installed by a machinist or technician into a compatible round die stock. Secure the die firmly in the stock using the set screws before beginning any thread cutting operation. Apply cutting oil to the workpiece to reduce heat and extend die life. Adjust the die for a trial pass and verify thread fit before cutting to final depth.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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