Iscar 5902132 Threading Insert 27 Tpi Npt Solid Carbide

Product Description

The ISCAR 5902132 is a laydown-style solid carbide threading insert designed for cutting external NPT threads at 27 threads per inch. It carries the IC908 manufacturer grade with a PVD-applied TiAlN coating for wear resistance across a wide range of workpiece materials. The insert features a 3/8-inch (0.375 inch) inscribed circle, a 0.143-inch thickness, and a 0.002-inch corner radius. Right-hand orientation makes it suited for standard external threading operations on CNC lathes and turning centers. Machinists and toolroom operators working to NPT pipe thread standards use this insert for precision thread-form production in production and job-shop environments.

This insert is used for external NPT pipe threading applications where consistent thread form and tool life are priorities. The IC908 grade with PVD TiAlN coating supports cutting in universal workpiece material categories including steel, stainless steel, cast iron, non-ferrous materials, and high-temperature alloys. It fits 16ER-style insert pockets and is suited for both light-production and high-volume threading cycles on turning equipment.

Key Features

• Solid carbide substrate with PVD TiAlN coating for extended wear resistance
• IC908 grade rated for universal workpiece materials including steel, stainless, cast iron, non-ferrous, and superalloys
• 27 TPI external NPT thread form for pipe thread cutting
• 3/8-inch inscribed circle, 16ER insert style for compatibility with standard 16ER pockets
• Right-hand cutting orientation
• 0.002-inch corner radius for accurate NPT thread profile definition

Compatibility

Designed for use in 16ER-series threading toolholders and insert pockets accepting laydown-style threading inserts with a 3/8-inch inscribed circle.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the turret is in a safe index position before seating or removing the insert. Use the correct torque wrench and clamping screw specified by the toolholder manufacturer — do not overtighten, as solid carbide inserts are brittle under lateral clamp stress. Verify insert seating and pocket cleanliness before resuming cutting operations.