

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The ISCAR 5902601 is a laydown threading insert engineered for right-hand internal NPT thread cutting at 14 threads per inch. Built from solid carbide with a PVD-applied TiAlN coating under the IC908 grade, this insert delivers consistent thread form in a wide range of workpiece materials including steels, stainless, cast iron, aluminum, and high-temperature alloys. The 3/8-inch inscribed circle and 16IRB insert style position it for use on standard ISCARTHREAD toolholders. The B chipbreaker geometry supports chip control during internal threading passes. At 0.015 pounds, handling and indexing are straightforward on the bench or at the machine.
This insert is suited for internal NPT thread production on pipe fittings, valves, manifolds, and fluid-system components in job shop, production, and maintenance machining environments. It applies wherever a right-hand internal NPT thread form is required and the holder accepts a 16IR-style laydown insert. The universal workpiece material designation covers a broad spectrum of metals, making it a versatile selection for shops running mixed-material work across plumbing, instrumentation, and industrial fluid-handling applications.
Designed for use with ISCARTHREAD system toolholders accepting 16IR-style laydown threading inserts. Intended for right-hand internal NPT threading applications at 14 TPI.
This insert is installed and indexed by a qualified machinist or toolroom technician. Power down and lock out the machine before changing inserts. Seat the insert fully against the pocket locating surfaces and torque the clamping screw per the toolholder manufacturer specification. Verify thread form with a calibrated NPT thread gauge before committing to a production run.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!