Milwaukee Tool 49-57-5355 Hex Rethreading Die 7/16-14 Unc

Product Description

The MILWAUKEE TOOL 49-57-5355 is a hex rethreading die designed to clean and restore damaged or corroded external threads on fasteners and threaded rod. Built from carbon steel, this die cuts a 7/16-14 UNC right-hand thread profile and fits the Hex-LOK series system. The hex outer dimension measures 1.0 inches across, allowing it to seat securely in a compatible wrench or rethreading handle. At 0.06 pounds, the die is compact and easy to work with in tight spaces. Thickness is 1/2 inch. This tool is used by electricians, plumbers, HVAC technicians, pipefitters, and general maintenance trades to recondition bolt and stud threads without full thread cutting.

This rethreading die is suited for repair work on 7/16-14 UNC fasteners encountered in mechanical assemblies, structural connections, and equipment maintenance. The right-hand thread direction matches standard fastener orientation for the vast majority of field applications. It is a non-adjustable die, meaning thread geometry is fixed for consistent results on the target thread size. The Hex-LOK series design allows quick engagement with standard hex-drive handles and wrenches, making it a practical addition to a field repair kit.

Key Features

• Restores damaged or corroded 7/16-14 UNC external threads
• Carbon steel construction for durability on standard fastener materials
• 1.0-inch hex outer dimension fits Hex-LOK series handles and compatible wrenches
• Non-adjustable fixed thread geometry for repeatable results
• Right-hand thread direction matches standard fastener orientation
• Compact at 1/2 inch thick and 0.06 pounds for easy portability

Compatibility

Designed for use with MILWAUKEE TOOL Hex-LOK series rethreading handles and compatible 1.0-inch hex-drive die sets for 7/16-14 UNC thread repair applications.

Installation Notes

Rethreading dies are typically used by licensed tradespeople performing fastener repair on de-energized or depressurized equipment. Before use, clean loose debris and rust from the damaged thread with a wire brush. Thread the die onto the fastener by hand to start, then advance with a wrench or handle, applying cutting oil to reduce friction and extend die life. Do not force the die past stripped or severely deformed threads that require full replacement of the fastener.