Ridgid 37880 1″ – 11-1/2 TPI Manual Threader Pipe & Bolt Die

The Ridgid 37880 Manual Threader Pipe & Bolt Die is a high-quality threading die set designed for professional use in cutting tapered National Pipe Thread (NPT) threads on 1-inch pipe or conduit. Constructed from durable high-speed steel with right-hand orientation, this die set delivers precise, consistent threads for secure, leak-resistant connections.

Key Features

• High-Speed Steel Construction: Built for long service life and reliable performance in threading metal pipe.
• 1″ NPT Thread Size: Produces standard 1-inch National Pipe Taper threads at 11-1/2 TPI (threads per inch).
• Right-Hand Threads: Standard direction for tightening pipe connections.
• Compatible with Ridgid Threaders: Works with manual and ratchet threader models including OO-R, 11-R, 12-R and O-R die heads, as well as 30A and 31A 3-way pipe threaders.
• 4-Piece Die Set: Includes all dies needed for cutting threads with compatible threader heads.

Applications

Ideal for plumbers, pipefitters, and HVAC professionals, this die set is used to thread metal pipe in preparation for coupling, elbow, or fitting installation where NPT threading is required.

Specifications

• Nominal Pipe Size: 1"
• Thread Standard: National Pipe Taper (NPT)
• Thread Pitch: 11-1/2 TPI
• Thread Direction: Right Hand
• Die Material: High-Speed Steel (HSS)
• Pieces Included: 4 dies