Eagle Cutting Tool CHD-448-I 4-48 Nf Carbon Hex Rethread Die

Product Description

The EAGLE CUTTING TOOL CHD-448-I is a carbon steel hex rethread die sized for 4-48 NF (National Fine) threads. Rethread dies are used to restore damaged or corroded external threads on bolts, screws, and threaded rods, bringing them back to serviceable condition without full replacement. The hexagonal body style allows use with a standard open-end wrench or die stock, making it a practical addition to any field or shop repair setup. This die is suited for light-duty thread restoration work where a cost-effective import-grade tool meets the job requirement.

This rethread die is used in general mechanical, plumbing, electrical, and HVAC service applications wherever 4-48 NF threaded fasteners appear. It is commonly used by technicians performing field repairs on small-diameter, fine-pitch threaded components such as instrument screws, small machine bolts, and panel fasteners. The compact hex format works in tight spaces where a full die stock may not fit.

Key Features

• 4-48 NF thread specification for fine-pitch external thread restoration
• Hexagonal body allows use with open-end wrench or standard die stock
• Carbon steel construction suitable for light-duty thread chasing and repair
• Import-grade option for cost-conscious repair and maintenance applications
• Single-piece construction with no moving parts for straightforward use

Compatibility

Designed for use on 4-48 NF externally threaded fasteners including bolts, screws, and threaded rod in general mechanical repair applications.

Installation Notes

Thread restoration dies should be used by qualified technicians familiar with proper die operation and thread standards. Ensure the fastener material is compatible with the die before use, and apply appropriate cutting fluid to reduce friction and extend tool life. Start the die square to the thread axis to avoid cross-threading. Inspect the fastener for cracks or deformation before rethreading, as a damaged fastener may not be safely restored.

Technical Specifications

• Thread Size: 4-48 NF
• Body Style: Hex
• Material: Carbon Steel
• Weight: 1.96 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: CHD-448-I