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The ISCAR 5993047 is a solid carbide laydown threading insert engineered for external NPT thread cutting at 14 threads per inch. Manufactured to the IC908 grade with a PVD-applied TiAlN coating, it delivers high wear resistance and thermal stability across a broad range of workpiece materials. The 3/8 inch (0.375 inch decimal) inscribed circle and 0.143 inch thickness conform to standard laydown insert geometry. The 16ER insert style seats in compatible ISCAR ISCARTHREAD toolholders and is suited for right-hand external threading operations on CNC lathes and turning centers.
This insert is designed for right-hand external NPT pipe thread profiles on turned components. Its universal primary workpiece material classification covers steel, stainless steel, cast iron, non-ferrous alloys, and high-temperature alloys, making it adaptable across general machining, oilfield, and fluid-handling component production. It is sold individually but requires a minimum order quantity of 5 units per purchase, which is standard practice for precision carbide threading inserts at this size class.
Designed for use with ISCAR ISCARTHREAD series toolholders accepting 16ER style laydown threading inserts. Specific toolholder compatibility should be confirmed against the ISCAR ISCARTHREAD system documentation for the 16ER insert style.
Threading inserts should be installed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Ensure the insert pocket and clamping screw are free of chips and debris before seating to maintain proper insert registration and thread profile accuracy. Do not exceed the toolholder manufacturer's recommended clamping torque for the insert screw size.
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.
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