Value Collection 81932649 Round Die 2-64 Unf Left Hand Hss

Product Description

The VALUE COLLECTION 81932649 is a round threading die designed to cut external left-hand threads in a 2-64 UNF configuration. Machined from high-speed steel (HSS), this die maintains cutting edge integrity under heat and friction generated during threading operations. The adjustable design allows the operator to fine-tune the die's cutting diameter, enabling controlled thread depth and fit tolerance. It is sized for use with a standard round die stock holder. Machinists, tool and die technicians, and maintenance professionals use this die when a left-hand thread is required for reverse-rotation applications or specific mechanical assemblies.

This die is suited for threading small-diameter fasteners, set screws, and precision components where a 2-64 UNF left-hand thread specification is called out. The 2-64 designation indicates a No. 2 nominal diameter with 64 threads per inch, placing it in fine-thread territory. Left-hand thread applications are common in rotating assemblies where standard right-hand threads would loosen under operational torque, such as left-side pedal spindles, certain turnbuckles, and specialized instrument hardware.

Key Features

• Left-hand thread direction for reverse-rotation or anti-loosening applications
• High-speed steel construction resists heat buildup and maintains cutting edge life
• Adjustable die body allows fine-tuning of thread fit and depth
• 2-64 UNF thread form for fine-pitch small-diameter threading work
• Round die profile fits standard round die stock holders

Compatibility

Designed for use with standard round die stock holders sized to accept the round die form. Suitable for cutting external left-hand 2-64 UNF threads on ferrous and non-ferrous workpieces appropriate to HSS tooling.

Installation Notes

This die is installed and operated by machinists or maintenance technicians using a compatible round die stock holder. Secure the die in the holder with the adjustment screw accessible before beginning the threading pass. Apply appropriate cutting fluid to the workpiece to extend die life and improve thread finish. Inspect the die for chipping or wear before each use, as a damaged cutting edge will produce out-of-tolerance threads.