Cle-line C65752 Round Die 12-28 Unf High Speed Steel

Product Description

The CLE-LINE C65752 is a round threading die designed to cut external threads on metal fasteners, studs, and rod stock. Sized for a 12-28 UNF thread profile, this die is made from high-speed steel (HSS) for durability and heat resistance during cutting operations. The adjustable design allows machinists and tradespeople to fine-tune thread fit by varying cutting pressure slightly. At 0.25 inches thick, it fits standard round die stocks used in bench and field threading work. Right-hand thread direction is standard for most UNF fastener applications. Machinists, pipefitters, and maintenance mechanics are the typical users of this tooling.

This die is suited for threading operations on inch-series fasteners requiring a 12-28 UNF specification. The UNF (Unified National Fine) standard is common in aerospace, automotive, and precision mechanical assemblies where fine thread pitch provides greater tensile strength and vibration resistance compared to coarse thread. Typical applications include rethreading damaged fasteners, threading new rod or blank stock, and shop or field repair work. The adjustable feature makes it practical for both production threading and repair scenarios where thread tolerance needs slight correction.

Key Features

• High-speed steel construction resists heat buildup and wear during threading
• Adjustable die allows fine-tuning of thread tolerance and fit
• Right-hand thread direction matches standard UNF fastener convention
• 12-28 UNF thread size suits precision mechanical and fastener applications
• 0.25 inch thickness fits standard round die stock holders

Compatibility

Designed for use in standard round die stocks that accept dies with the appropriate outside diameter for a 12-28 UNF round die. Verify die stock inside diameter compatibility before use.

Installation Notes

Round dies are installed and used by machinists, maintenance mechanics, and tradespeople familiar with manual or powered die stocks. Secure the die properly in the die stock set screw before beginning any threading pass. Apply appropriate cutting fluid to the workpiece to extend die life and improve thread finish. Inspect the die for cracks or wear before each use and replace if cutting edges are damaged.