Iscar 5902816 Threading Insert 10 Tpi 3/8 in IC908 Carbide

Product Description

The ISCAR 5902816 is a laydown threading insert engineered for right-hand internal UN thread cutting at 10 threads per inch (TPI). Built from solid carbide and finished with a PVD-applied TiAlN coating under the IC908 grade designation, this insert delivers thermal resistance and edge wear performance suited to demanding threading operations. The 3/8 inch (0.375 inch) inscribed circle and 0.143 inch thickness conform to the 16IRB insert style standard. The chipbreaker geometry is B-style, optimized for chip control in internal threading passes. Licensed machinists and CNC lathe operators in production and job-shop environments are the primary users of this insert.

The 5902816 is designed for internal UN thread cutting on a range of workpiece materials. The IC908 grade covers a broad material compatibility spectrum, including steel, stainless steel, cast iron, non-ferrous metals, and high-temperature alloys, as reflected in the multi-code workpiece classification (H, K, M, N, P, S). This insert fits ISCARTHREAD series toolholders designed for 16IR-style laydown inserts and is suited to both single-point threading cycles and multi-pass threading programs on CNC turning centers. Typical applications include threading bores in manifolds, couplings, fittings, and hydraulic components.

Key Features

• Solid carbide substrate with PVD TiAlN coating under IC908 grade for extended tool life
• Right-hand internal UN thread profile at 10 TPI
• 16IRB insert style with 3/8 inch inscribed circle and B-style chipbreaker
• 0.143 inch insert thickness for secure seating in compatible toolholders
• Universal workpiece material rating covering steel, stainless, cast iron, non-ferrous, and superalloys
• Compliant with ISO 13399 cutting tool data representation standards

Compatibility

Designed for use with ISCARTHREAD series toolholders that accept 16IR-style laydown threading inserts. Compatible workpiece material codes include H, K, M, N, P, and S, indicating broad applicability across common engineering materials used in internal UN thread applications.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the lathe or turning center before indexing or replacing inserts. Use the appropriate torx or hex key to the toolholder manufacturer's specified seating procedure and ensure the insert is fully seated against the pocket before resuming cutting operations. Do not exceed the toolholder's recommended depth-of-cut or feed parameters for threading cycles.