Description
RIDGID 1/4″ – 3/8″ NPT RH Universal dies are professional-grade threading components designed for high-precision pipe threading in machine die heads. These dies are standard for creating American National Standard Taper Pipe Threads (NPT) on small-diameter pipes.
Key Specifications
- Thread Type: NPT (National Pipe Taper) with 18 TPI (Threads Per Inch).
- Capacity: Designed for 1/4″ and 3/8″ nominal pipe sizes.
- Direction: Right-Hand (RH) threading.
- Quantity: Typically sold as a set of 4 dies.
Material Options and Catalog Numbers
Depending on the material being threaded, RIDGID offers these dies in different metal compositions:
- Alloy RH (Catalog #47740): Best for threading black steel, galvanized steel, and softer materials.
- High-Speed RH (Catalog #47760): Provides longer tool life and is suitable for a wider variety of tough materials.
- High-Speed for Stainless Steel (Catalog #47780): Specifically formulated to cut clean threads in stainless steel without excessive wear or “chattering”.
Compatibility
These “Universal” dies are designed to fit a wide range of RIDGID machine die heads, including:
- Die Head Models: 504A, 711, 713, 811A, 815A, 816, 817, and 842.
- Threading Machines: Compatible with RIDGID 300, 535, 1215, 1224, and 1822 series threading machines.
User Performance & Reliability
According to professional reviewers on milanoceramiche.it, RIDGID dies are favored for their ability to deliver clean, precise threads without tearing, especially in high-volume shop environments. Users on ridgid.eu emphasize that using high-quality thread cutting oil is essential to maximize the lifespan of the teeth and ensure smooth operation.
Be the first to review “RIDGID 1/4″ – 3/8″ NPT RH Universal dies” Cancel reply
Related products
-
DIE PIPE 1” 11-1/2TPI NPT 12R
$81.25Original price was: $81.25.$59.01Current price is: $59.01.Add to cart -
-
DIES 2” NPT SS RH 12-R HS
$121.65Original price was: $121.65.$84.32Current price is: $84.32.Add to cart -
DIE SET 12R 1/2 NPT SS 4BLD PKG
$96.50Original price was: $96.50.$68.49Current price is: $68.49.Add to cart


































Reviews
There are no reviews yet.