Carmex 22UIR4ACMEBXC Threading Insert 4 Tpi 1/2 in Ic

Product Description

The CARMEX 22UIR4ACMEBXC is a solid carbide laydown threading insert designed for cutting internal Acme threads. It operates at 4 threads per inch (TPI) with a 1/2 inch inscribed circle (IC) and a thickness of 0.187 inches. The insert features a TiN coating applied via PVD process, which improves wear resistance and extends tool life in demanding threading operations. The right-hand cutting geometry is configured for internal thread forms following the Acme standard with a 29-degree included angle. This insert is installed by machinists and toolroom professionals performing precision threading on lathes and CNC turning centers.

The 22UIR4ACMEBXC is suited for internal Acme thread cutting across a broad range of workpiece materials. The universal material compatibility rating covers ferrous, non-ferrous, and exotic alloy applications. Typical use cases include threading power screws, jacks, lead screws, and feed mechanisms where Acme thread profiles are specified. The BXC grade designation indicates a coated carbide substrate matched to the insert style 22IR form factor.

Key Features

• Solid carbide substrate with PVD-applied TiN coating for extended tool life
• 29-degree included angle for accurate Acme thread profile geometry
• 4 TPI cutting configuration for standard Acme internal threads
• 1/2 inch inscribed circle, 0.187 inches thick laydown-style seating
• Right-hand internal thread orientation
• Universal workpiece material compatibility across multiple material groups

Compatibility

Designed for use in toolholders accepting 22IR-style laydown threading inserts with a 1/2 inch inscribed circle. Compatible with workpiece material groups H, K, M, N, P, and S per standard material classification.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Power down and lock out the machine spindle before seating or changing the insert. Ensure the toolholder pocket and clamping surfaces are clean and free of chips before installing the insert. Verify thread form and TPI match the workpiece specification before beginning a threading pass.