Carmex 22UER3STACMEBXC Laydown Threading Insert 3 Tpi

Product Description

The CARMEX 22UER3STACMEBXC is a solid carbide laydown threading insert designed for right-hand external Stub Acme thread forms at 3 threads per inch (TPI). It carries a PVD-applied titanium nitride (TiN) coating for wear resistance and extended tool life on a broad range of workpiece materials. The insert measures 0.5 inches inscribed circle and 0.187 inches thick, conforming to the 22ER style designation. It is intended for use on CNC lathes and turning centers by machinists and toolroom professionals performing precision threaded feature production.

This insert is suited for external Stub Acme threading operations in both production and job-shop environments. The 29-degree included angle matches the Stub Acme thread standard, making it appropriate for lead screw, power transmission, and linear motion component applications. Its universal workpiece material compatibility rating covers steel, stainless, cast iron, non-ferrous, aluminum, and high-temperature alloys, giving it broad applicability across general and specialty machining work.

Key Features

• Solid carbide substrate with PVD TiN coating for hardness and thermal resistance
• Right-hand external Stub Acme thread profile at 3 TPI with a 29-degree included angle
• 22ER insert style - 0.5 inches inscribed circle, 0.187 inches thick
• Universal material compatibility: steel, stainless, cast iron, non-ferrous, aluminum, and superalloys
• Manufactured to CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards
• Laydown seating geometry for stable, repeatable insert indexing

Compatibility

Designed as an OEM-style replacement threading insert for 22ER-style toolholders requiring a right-hand external Stub Acme insert with a 0.5-inch inscribed circle.

Installation Notes

Installation should be performed by a qualified machinist following the toolholder manufacturer's torque and seating procedures. Ensure the machine spindle is fully stopped and the turret is in a safe index position before changing inserts. Inspect the insert pocket and clamping screw for wear or debris before seating the new insert. Follow applicable shop safety procedures and machine guarding requirements during all tooling changes.