Overview
RIDGID 37825 is a 1/2″ NPT 12-R alloy pipe die set designed for manual threading of regular steel pipes and conduit. This die head comes with four precision-machined dies that produce consistent 1/2″-14 NPT threads. The alloy construction offers dependable performance and is recommended for threading regular-gauge steel pipes.
Key Features
- Alloy right-hand (RH) die material for regular steel pipe threading
- 1/2″ NPT National Pipe Taper thread profile, 14 TPI (threads per inch)
- Compatible with OO-R, 11-R, 12-R, O-R ratchet threaders and 30A, 31A 3-way pipe threaders
- Precision-machined for optimal threading accuracy and smooth operation
- Heavy-duty construction for repeated use in industrial and plumbing applications
- Pack of 4 dies per unit
Technical Specifications
- Nominal Pipe Size: 1/2″
- Thread Type: National Pipe Taper (NPT)
- Threads Per Inch (TPI): 14
- Die Material: Alloy Steel, Right-Hand (RH)
- Thread Direction: Right-Hand
- Die Head Model: 12-R
- Quantity Per Pack: 4 dies
- Weight: 2.0 lbs
- UPC: 095691378255
Typical Applications
RIDGID 37825 dies are widely used in:
- Plumbing installations and maintenance for cutting NPT threads on steel pipe
- HVAC system assembly and repair
- Industrial piping systems requiring standard NPT connections
- On-site threading where portable manual ratchet threaders are preferred
- Field repairs and installations across commercial and residential applications
Compatibility & Replacements
Compatible With
- RIDGID 12-R Ratchet Threader (model 30118)
- RIDGID OO-R Ratchet Threader
- RIDGID 11-R Ratchet Threader
- RIDGID O-R Ratchet Threader
- RIDGID 30A 3-Way Pipe Threader
- RIDGID 31A 3-Way Pipe Threader
- National Pipe Taper (NPT) threading systems
Replaces / Drop-In Replacement For
RIDGID 37825 is the OEM part number for 1/2″ NPT 12-R alloy dies. Verify any predecessor or alternate model numbers with your equipment documentation before ordering alternative part numbers.
Works With
- Manual ratchet-type pipe threaders with 12-R die head interface
- Three-way pipe threaders (models 30A and 31A)
- National Pipe Taper (NPT) threaded connections
- Standard steel pipe conditioning and setup
