Iscar 5902196 Threading Insert 20 Tpi Unj IC228 Carbide

Product Description

The ISCAR 5902196 is a laydown-style solid carbide threading insert designed for internal UNJ thread forms at 20 threads per inch (TPI). Manufactured to the IC228 grade with a PVD-applied TiCN/TiN coating, it delivers wear resistance and edge toughness suited for precision threading operations. The insert features a 3/16 inch (0.1875 inch) inscribed circle, a thickness of 0.0790 inches, and a corner radius of 0.0075 inches. It is oriented for right-hand cutting and fits the 08IR insert style. Licensed machinists, CNC operators, and toolroom technicians working with UNJ thread standards will find this insert appropriate for high-accuracy threading cycles.

This insert is intended for internal threading applications on a wide range of workpiece materials, including steels, stainless steels, cast irons, non-ferrous alloys, high-temperature alloys, and titanium, consistent with its universal primary workpiece material classification covering H, K, M, N, P, and S material groups. It is well-suited for CNC turning centers and lathes performing internal thread cycles where UNJ profile accuracy and consistent tool life are priorities.

Key Features

• IC228 grade solid carbide substrate with PVD TiCN/TiN coating for enhanced wear resistance
• Right-hand internal UNJ thread form at 20 TPI
• 08IR insert style with 3/16 inch inscribed circle (0.1875 inch decimal)
• Corner radius of 0.0075 inches for precise thread root geometry
• Universal material compatibility: H, K, M, N, P, and S workpiece groups
• Conforms to ISO 13399 tooling data standards

Compatibility

Designed as an OEM-style replacement threading insert for toolholders accepting the 08IR laydown insert style in internal threading applications.

Installation Notes

Installation is performed by qualified CNC operators or toolroom machinists. Power down and de-energize all machine axes before changing inserts. Use the appropriate torque wrench and clamping screw specified by the toolholder manufacturer — do not overtighten, as this can fracture the carbide substrate. Verify insert seating and thread profile with a go/no-go gauge before returning the part to production.