RIDGID 1-1/2″ NPT 12-R Replacement Die Head for Manual Pipe Threaders
The RIDGID 12-R Die Head is a high-performance, precision-engineered replacement head designed for use with RIDGID manual pipe and bolt threading machines. Engineered for durability and ease of use, this die head is the go-to choice for professional plumbers, pipefitters, and maintenance technicians who demand clean, accurate, and reliable threads every time.
Crafted to cut standard 1-1/2 Inch National Pipe Taper (NPT) threads, this die head ensures a perfect, leak-resistant fit for your pipe systems. Its robust construction and user-friendly features make it an indispensable tool for both job site and workshop applications.
Key Features & Benefits
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Precision NPT Threading:Â Cuts perfect 1-1/2″ National Pipe Taper (NPT) threads, ensuring a secure, pressure-tight seal for all your pipe connections.
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Universal Compatibility: Designed to fit a wide range of RIDGID manual threaders, including popular models like the RIDGID 12-R Threader, 141, 151, and others that accept 12-R style die heads.
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Quick-Release Mechanism:Â Features a convenient quick-release latch that allows for fast and easy opening and closing, speeding up your workflow when loading or removing pipe.
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Durable, Long-Lasting Cutters:Â Equipped with four high-speed steel (HSS) chaser cutters that provide a sharp, clean cutting edge for a superior thread finish and extended service life.
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Reversible Cutters:Â The chaser cutters are reversible, effectively doubling their usable life and providing excellent value.
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Rugged Cast Iron Construction:Â Built with a heavy-duty cast iron body to withstand the rigors of daily professional use, resisting damage from drops and impacts.
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Clear Size Marking:Â Prominently marked with the size (1-1/2″) and part number (12-R) for easy identification in your toolbox or on a busy job site.
Technical Specifications
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Product Line:Â RIDGID 12-R Series
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Threads Per Inch (TPI):Â 11.5 (Standard for 1-1/2″ NPT)
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Thread Type:Â NPT (National Pipe Taper)
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Nominal Pipe Size:Â 1-1/2 Inch
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Compatibility:Â Fits RIDGID 12-R, 141, 151, and other manual threaders using the 12-R style die head.
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Material:Â Heavy-Duty Cast Iron Body with High-Speed Steel Chasers.
Intended Use & Applications
This die head is ideal for threading 1-1/2″ black iron, steel, and stainless steel pipe. It is commonly used for:
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Commercial and residential plumbing systems
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Industrial pipefitting and process piping
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HVAC (Heating, Ventilation, and Air Conditioning) installations
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Fire sprinkler systems
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General maintenance and repair in factories and facilities

