Carmex 22UER4ACMEMXC Threading Insert 4 Tpi 1/2 in Ic

Product Description

The CARMEX 22UER4ACMEMXC is a solid carbide laydown threading insert designed for external Acme thread cutting at 4 threads per inch (TPI). Built with a micrograin carbide substrate and a PVD-applied TiN coating, this insert delivers consistent thread form geometry on a wide range of workpiece materials. The 22ER style seats in standard laydown insert toolholders. The 29-degree included angle matches the Acme thread standard, and right-hand orientation suits conventional external threading operations. Qualified machinists and CNC lathe operators in production and job shop environments are the primary users of this insert.

This insert is suited for external Acme threading applications across a broad range of metallic and non-metallic materials, including ferrous, non-ferrous, stainless, and superalloy workpieces, as indicated by the universal material grade designation covering material codes H, K, M, N, P, and S. Typical use cases include lead screw production, power transmission components, and threaded rod machining where the Acme thread form is required. The 1/2-inch inscribed circle and 0.187-inch thickness are consistent with standard 22-size laydown toolholder pockets.

Key Features

• Solid carbide micrograin substrate for wear resistance and edge retention
• PVD TiN coating reduces friction and extends tool life across universal workpiece materials
• 4 TPI Acme thread form with 29-degree included angle for precise thread geometry
• Right-hand external threading orientation for standard CNC and manual lathe setups
• 1/2-inch inscribed circle fits standard 22ER laydown toolholder pockets
• Manufacturer meets CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed for use in standard 22ER-style laydown threading toolholders that accept a 1/2-inch inscribed circle insert with a 0.187-inch seating thickness.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's torque and clamping procedures. Ensure the machine spindle is fully stopped and the tool is de-energized before changing inserts. Verify correct insert orientation and thread hand before initiating a threading pass. Inspect the insert pocket for chips or damage that could affect seating and thread accuracy.