Irwin Hanson 6848 Hex Rethreading Die 9/16-12 Unc

Product Description

The IRWIN HANSON 6848 is a hex rethreading die designed to restore damaged or corroded external threads on bolts, studs, and threaded rod. It cuts a 9/16-12 thread profile to the UNC standard in the right-hand direction using a fixed, non-adjustable design that keeps thread geometry consistent across uses. Manufactured from carbon steel, the die delivers reliable cutting performance on common fastener materials encountered in mechanical, plumbing, and industrial maintenance work. Machinists, millwrights, and maintenance technicians reach for this die when field repairs require restoring a fastener thread without full replacement.

This die is suited for repair and maintenance applications across residential, commercial, and light industrial settings. It is commonly used when a bolt or stud has been cross-threaded, corroded, or otherwise damaged and needs to be chased back to usable condition before reassembly. The 9/16-12 UNC size covers a wide range of structural and mechanical fasteners found in equipment frames, pipe flanges, and heavy-duty assemblies.

Key Features

• 9/16-12 thread size for a common UNC fastener specification
• Right-hand thread direction for standard fastener orientation
• Carbon steel construction provides consistent cutting performance
• Fixed, non-adjustable design maintains accurate thread geometry
• Hex outer profile accepts a standard die stock or wrench for controlled torque application

Compatibility

Designed as an OEM-style rethreading solution for any external 9/16-12 UNC right-hand threaded fastener requiring thread restoration.

Installation Notes

A licensed machinist or experienced maintenance technician should select the correct die stock that fits the hex outer diameter before use. Secure the workpiece firmly and apply cutting oil to the die and fastener threads before beginning to chase. Turn the die slowly with steady, even pressure, backing off periodically to clear chips. Keep hands and clothing clear of the cutting edge during operation.