Eagle Cutting Tool CHD-37500-4-I Carbon Hex Rethread Die

Product Description

The EAGLE CUTTING TOOL CHD-37500-4-I is a carbon hex rethread die designed to restore damaged or corroded external threads on bolts, studs, and threaded rod. Sized for 3-3/4 inch diameter with a 4 threads-per-inch (TPI) pitch, this die fits standard hex die stocks and handles used in plumbing, pipefitting, and general mechanical trade work. At 9.35 pounds, it is a substantial tool built for demanding rethreading tasks where thread integrity is critical to a leak-free or structurally sound connection.

This rethread die is suited for use on large-diameter fasteners and threaded pipe fittings commonly found in industrial plumbing, mechanical systems, and heavy equipment maintenance. It is typically employed by plumbers, pipefitters, and maintenance mechanics when existing threads are too damaged to accept a nut or coupling without corrective work. The hex body design provides positive grip in compatible die stocks for controlled, repeatable passes.

Key Features

• 3-3/4 inch diameter, 4 TPI thread profile for rethreading large fasteners and fittings
• Hex body design seats securely in standard hex die stocks
• Carbon steel construction for durability in rethreading applications
• Import-grade tooling suited for maintenance and repair use cases
• Single-piece minimum order quantity supports individual tool procurement

Compatibility

Designed for use with standard hex die stocks that accept 3-3/4 inch hex rethread dies. Intended for rethreading 3-3/4 inch diameter external threads at 4 TPI pitch.

Installation Notes

This die is installed and operated by plumbers, pipefitters, or mechanical technicians using a compatible hex die stock. Before rethreading, de-energize or isolate any system the fastener or fitting is part of and relieve all pressure. Apply appropriate cutting oil to the die and the workpiece to reduce heat and extend tool life. Work slowly and back off periodically to clear chips and prevent thread galling.

Technical Specifications

• Thread Diameter: 3-3/4 inches
• Threads Per Inch (TPI): 4
• Body Style: Hex
• Material: Carbon Steel
• Weight: 9.35 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: CHD-37500-4-I