Value Collection 81930809 Round Die 0-80 Unf Hss Left Hand

Product Description

The VALUE COLLECTION 81930809 is a round threading die designed to cut external left-hand threads in the 0-80 UNF size. Manufactured from high-speed steel (HSS), this die maintains cutting edge hardness under the heat generated during threading operations. The adjustable design allows the technician to fine-tune thread fit by slightly opening or closing the die body using the adjustment screw. This die is suited for machinists, maintenance technicians, and tool-and-die professionals who need to produce left-hand threaded fasteners or repair damaged external threads on small-diameter stock.

This die is used wherever a 0-80 left-hand UNF external thread is required. Common applications include instrument assembly, electronics hardware, optical equipment, and specialty mechanical assemblies where left-hand thread engagement is specified to prevent loosening from rotational forces. The small thread profile makes it appropriate for work on precision components in both shop and field repair environments.

Key Features

• 0-80 UNF thread size for fine-pitch external threading on small-diameter stock
• Left-hand thread direction for applications requiring reverse-thread fastening
• High-speed steel construction retains hardness at elevated cutting temperatures
• Adjustable die body allows thread fit fine-tuning without additional tooling
• Round die profile fits standard die stocks and holders

Compatibility

Designed as a standard round die for use in conventional die stocks and holders sized for the 0-80 round die outer diameter. Confirm die stock compatibility before use.

Installation Notes

A licensed machinist or trained technician should operate threading dies on properly secured workpieces. Apply cutting oil to the workpiece before threading to reduce heat buildup and extend die life. Ensure the workpiece diameter is ground or turned to the correct major diameter for 0-80 UNF threads before starting the cut. Back off the die periodically to clear chips and prevent binding, particularly in blind or deep threading applications.