49-57-5391 Hex Threading Die, 1/4-18 Npt, Hcs, 1-7/16 In.

The Milwaukee 49-57-5391 is a precision hex threading die designed for creating and repairing external NPT (National Pipe Taper) threads. This 1-7/16 inch hex die fits standard die stocks and can also be driven with a wrench, offering versatility for workshops and job sites. It delivers clean, reliable threads on brass, aluminum, and mild steel, making it an essential tool for plumbing applications, industrial connections, and fluid control systems.

Professional-grade threading requires precision-machined geometry that ensures uniform pitch and depth with every pass. The Milwaukee die's laser-etched sizing markings provide instant visual reference, eliminating guesswork and speeding up task completion. Its black-oxide coating protects against corrosion in humid or oily environments, extending tool life through heavy use. Grip stability during operation minimizes tool slip and maintains consistent torque, reducing rework and boosting productivity while protecting both the die and workpiece.

Features and Benefits

• Precision Machined 1/4-18 NPT Thread: Guarantees exact thread dimensions for reliable pipe fittings and fluid control applications.
• Laser-Etched Sizing: Crystal-clear markings provide instant visual reference without guesswork, speeding up job completion.
• Black-Oxide Corrosion Resistance: Durable coating safeguards against moisture and oils common in metalworking environments, extending tool life.
• Universal Hex Design: Compatible with standard 1-7/16 inch die stocks and can be driven with a wrench for flexible handling options.
• Multi-Material Capability: Cuts clean threads in brass, aluminum, and mild steel, covering the most common metalworking tasks.
• Stable Grip Performance: Solid construction resists wear and maintains cutting precision under high-pressure operation.

Specifications

• Brand: Milwaukee
• Model: 49-57-5391
• Thread Size: 1/4-18 NPT
• Hex Size: 1-7/16 inches
• Material: HCS (High Carbon Steel)

Descriptions are AI-generated. For accurate measurements, please call the store to confirm.