Milwaukee Tool 49-57-5368 Hex Rethreading Die 9/16-18 Unf

Product Description

The MILWAUKEE TOOL 49-57-5368 is a hex rethreading die designed to restore damaged or corroded external threads to their original specification. Built from carbon steel, this die is sized for 9/16-18 UNF right-hand threads and accepts a 1-7/16 inch hex wrench or holder for driving. Rethreading dies like this one are standard equipment for mechanics, pipefitters, and maintenance technicians who need to recover fastener threads on bolts, studs, and threaded rod without full replacement. The fixed, non-adjustable design ensures consistent thread geometry on every pass.

This die is suited for use in automotive, industrial, and general mechanical maintenance applications where 9/16-18 UNF thread profiles appear on fasteners, fittings, or shafts. It is appropriate for both shop and field use. Technicians working on equipment with fine-thread fasteners in this size range will find this die a straightforward fit for thread recovery work. The compact 0.5 inch thickness allows access in tighter fastener clearances.

Key Features

• 9/16-18 UNF thread specification for fine-thread fastener recovery
• Carbon steel construction for durability in rethreading applications
• Right-hand thread direction matches standard fastener orientation
• 1-7/16 inch hex drive fits standard die stocks and wrenches
• Fixed, non-adjustable design for repeatable thread restoration
• 0.5 inch thickness accommodates tighter working clearances

Compatibility

Designed for use with standard hex die stocks accepting a 1-7/16 inch hex die. Intended for restoration of 9/16-18 UNF right-hand external threads on bolts, studs, and threaded rod.

Installation Notes

Rethreading dies are installed by mechanics and maintenance technicians using a compatible hex die stock or adjustable wrench. Before use, clean and inspect the damaged threads and apply cutting oil to lubricate the die and reduce heat buildup. Work the die slowly in the correct thread direction, backing off periodically to clear chips. Do not force the die over severely deformed threads without first dressing them with a file.