Carmex 11IR36UNBMA Threading Insert 36 Tpi Solid Carbide

Product Description

The CARMEX 11IR36UNBMA is a solid carbide laydown threading insert designed for internal UN thread cutting at 36 threads per inch. Built from submicron-grade solid carbide with a PVD-applied TiAlN coating, this insert delivers consistent thread form geometry for right-hand internal threading operations. The 60-degree included angle conforms to standard UN thread profiles. With a 1/4-inch (0.250 inch) inscribed circle and a thickness of 0.127 inches, it fits standard 11IR toolholders used on CNC lathes and threading machines. Professional machinists and CNC operators use this insert for high-precision internal thread production across a broad range of workpiece materials.

This insert is suited for internal threading applications on materials classified under workpiece categories H, K, M, N, P, and S, covering hardened materials, cast iron, stainless steel, non-ferrous metals, steel, and high-temperature alloys. It is appropriate for both production and job-shop environments where repeatable UN thread form accuracy is required. The laydown seating style provides stable insert clamping and consistent depth of cut repeatability. Minimum order quantity is 10 units; packaging quantity is 1 per pack.

Key Features

• Solid carbide submicron-grade substrate for wear resistance in demanding threading operations
• PVD TiAlN coating extends tool life across a wide range of workpiece materials
• 36 TPI right-hand internal UN thread form with 60-degree included angle
• 1/4-inch inscribed circle, 0.127-inch thickness for standard 11IR toolholder compatibility
• 0.0020-inch corner radius for sharp, accurate thread root profile
• Certified to CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed for use with 11IR-style internal threading toolholders. Compatible with workpiece materials in categories H, K, M, N, P, and S as specified by the manufacturer, covering hardened steels, cast iron, stainless steel, non-ferrous alloys, general steels, and superalloys.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing inserts. Ensure the toolholder pocket and clamping screw are clean and free of debris before seating the insert to maintain proper depth and angular orientation. Do not exceed the cutting parameters specified by the toolholder manufacturer for the 11IR insert style.