Carmex 1/2EXRHN60P25C Threading Insert Carbide Tin

Product Description

The CARMEX 1/2EXRHN60P25C is a laydown threading insert designed for external right-hand thread cutting on CNC lathes and turning centers. Built from solid carbide in grade P25C (material grade C5) with a TiN PVD coating, this insert handles partial-profile 60-degree threads across a pitch range of 3.50 mm to 5.00 mm (7 to 5 TPI). The 0.5-inch inscribed circle and 0.187-inch thickness conform to the 22 ER insert style standard. The PVD coating process delivers tight edge tolerances and consistent surface finish on threaded workpieces. This insert is suited for machinists and toolroom professionals running production or job-shop threading operations.

Rated for universal primary workpiece material compatibility, the 1/2EXRHN60P25C works across a broad range of material grades including cast iron, stainless steel, steel, non-ferrous metals, high-temperature alloys, and general-purpose materials corresponding to material codes H, K, M, N, P, and S. It fits standard 22 ER insert pockets on external threading toolholders. Typical applications include cutting metric-compatible external threads on shafts, fittings, and fastener blanks in both high-mix and production environments.

Key Features

• Solid carbide construction in manufacturer grade P25C for wear resistance and edge stability
• TiN PVD coating for reduced built-up edge and extended tool life across universal materials
• 60-degree included angle for standard external partial-profile thread forms
• Pitch range of 3.50 mm to 5.00 mm covering 7 to 5 TPI applications
• 22 ER insert style with 0.5-inch inscribed circle and 0.187-inch thickness
• Compliant with CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed for use in standard 22 ER external threading toolholders that accept laydown-style inserts with a 0.5-inch inscribed circle. Compatible with workpiece materials spanning material codes H, K, M, N, P, and S as specified by the manufacturer.

Installation Notes

Installation of threading inserts should be performed by a qualified machinist with the machine in a locked-out, de-energized state before any insert change. Use the appropriate torx or hex key specified for the toolholder to seat the insert securely without overtightening. Verify insert pocket condition and clamp integrity before resuming cutting operations. Always confirm thread pitch and insert profile match the programmed toolpath before the first pass.