Carmex 22IR5ACMEMXC Threading Insert 5 Tpi 1/2 in Ic Acme

Product Description

The CARMEX 22IR5ACMEMXC is a solid carbide laydown threading insert designed for cutting internal Acme threads. It operates at 5 threads per inch (TPI) with a 29-degree included angle, conforming to standard Acme thread geometry. The insert features a PVD-applied titanium nitride (TiN) coating over a micrograin carbide substrate, which supports edge hardness and wear resistance across a wide range of workpiece materials. With a 1/2 inch inscribed circle and 0.187 inch thickness, it fits standard laydown insert toolholders used on CNC lathes and manual threading machines. Machinists and toolroom operators install this insert for precision internal threading applications.

This insert is suited for internal Acme thread production in both production and job-shop environments. Its MXC grade micrograin carbide construction makes it applicable across universal workpiece materials, including steel, stainless, cast iron, non-ferrous alloys, high-temp alloys, and plastics. It is a right-hand insert, meaning it cuts on a standard right-hand feed direction. Typical use cases include lead screw bores, power transmission components, and hydraulic or mechanical actuator housings requiring Acme-profile internal threads.

Key Features

• Solid micrograin carbide substrate in MXC grade for edge stability and extended tool life
• PVD TiN coating applied for improved surface hardness and reduced workpiece adhesion
• 5 TPI Acme thread profile with 29-degree included angle for standard Acme geometry
• Right-hand internal thread orientation for conventional lathe threading operations
• 1/2 inch inscribed circle fits standard 22IR laydown toolholder pockets
• Rated for universal workpiece materials including steel, stainless, cast iron, and non-ferrous alloys

Compatibility

Designed for use in 22IR-style laydown threading toolholders configured for internal Acme thread applications at 5 TPI. Compatible workpiece material codes include H, K, M, N, P, and S per ISO material classification.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. The machine spindle and all axis movement must be locked or powered down before seating or removing the insert. Use the correct torx or clamping screw specified by the toolholder manufacturer to secure the insert; do not overtighten. Verify thread pitch and hand orientation against the job drawing before beginning the threading pass.