Ridgid 37870 378 Series NPT High Speed Pipe Threading Dies

Ridgid 37870 378 Series NPT High Speed Pipe Threading Dies

The Ridgid 37870 is a set of 1/2" NPT (National Pipe Thread) high speed dies from the Ridgid 378 Series, engineered for cutting clean, accurate National Pipe Thread profiles on compatible Ridgid die head threading equipment. The 378 Series die lineup spans multiple pipe sizes across models 37870, 37880, and 37895, giving plumbers, pipefitters, and contractors a consistent, purpose-built solution for producing code-compliant threaded joints across a range of NPT pipe sizes. This listing covers the 37870 model, sized for 1/2" NPT threading applications. Manufactured from high speed steel and built for professional use, these dies are backed by Ridgid's Full Lifetime Warranty and manufactured in the United States, reflecting the durability and precision that trade professionals expect from Ridgid tooling.

Key Features

• Trade Size: Sized for 1/2" NPT pipe threading applications, delivering the correct thread profile for standard National Pipe Thread connections.
• Thread Standard: Configured for NPT (National Pipe Thread) threading, ensuring compatible, leak-resistant threaded joints on compatible Ridgid die head equipment.
• High Speed Steel Construction: Manufactured from high speed steel for extended cutting life and consistent thread quality across repeated use in demanding field and shop conditions.
• 378 Series Family: Part of the Ridgid 378 Series die lineup, which spans models 37870, 37880, and 37895 for different NPT trade sizes, designed to work with corresponding Ridgid threading equipment for reliable, repeatable results.
• Model Number: Identified as model 37870, NPT (National Pipe Thread), for straightforward identification and reordering.
• Full Lifetime Warranty: Backed by Ridgid's Full Lifetime Warranty, giving professionals confidence in long-term performance and product support.
• Country of Manufacture: Manufactured in the United States to Ridgid's quality standards.

Technical Specifications

• Model Number: 37870 (NPT, National Pipe Thread)
• Series: 378 Series (available across models 37870, 37880, 37895)
• Trade Size: 1/2" NPT
• Material: High Speed Steel
• Product Warranty: Full Lifetime Warranty
• Country of Origin: United States

Typical Applications

• Plumbing Pipe Threading
• Pipefitting and Mechanical Piping Installations
• Commercial and Residential Plumbing Systems
• Maintenance and Repair of Threaded Pipe Connections
• Professional Trade and Contractor Job Sites

Why Ridgid?

Ridgid has built its reputation on rugged, precision-manufactured tooling that professional plumbers and pipefitters can rely on day after day. The 37870 high speed die continues that standard as part of the broader 378 Series lineup, offering 1/2" NPT thread-cutting accuracy backed by a Full Lifetime Warranty and United States manufacturing. For trade professionals who need dependable, code-compliant threading results across a range of NPT pipe sizes, Ridgid's 378 Series dies deliver the consistency and durability the brand is known for.