Carmex 22ER8ABUTBXC Threading Insert 8 Tpi Solid Carbide

Product Description

The CARMEX 22ER8ABUTBXC is a solid carbide laydown threading insert designed for external American Buttress thread profiles. It runs at 8 threads per inch (TPI) and fits toolholders that accept the 22 ER insert style. The insert carries a PVD-applied TiN coating for improved wear resistance and is sized with a 0.5-inch inscribed circle and a thickness of 0.187 inches. Right-hand cutting orientation is standard. Licensed machinists and CNC lathe operators install this insert for precision threading on a wide range of workpiece materials, including steels, stainless, cast iron, non-ferrous alloys, and high-temperature alloys.

This insert is suited for external Buttress thread turning on production and job-shop lathes wherever an American Buttress profile is required. Its universal workpiece material rating covers carbon steels, stainless steels, cast iron, non-ferrous materials, and superalloys, making it a versatile option across industries including oilfield, hydraulic cylinder, and heavy equipment manufacturing. The 45-degree included angle and 1-degree relief angle match the standard American Buttress geometry.

Key Features

• Solid carbide substrate with PVD TiN coating for extended tool life
• American Buttress external thread profile at 8 TPI
• 22 ER insert style with 0.5-inch inscribed circle
• Right-hand cutting orientation
• Universal primary workpiece material compatibility: H, K, M, N, P, S material groups
• Meets CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed as an OEM-style replacement threading insert for 22 ER style toolholders requiring external American Buttress thread geometry at 8 TPI.

Installation Notes

Install and replace threading inserts with the machine fully powered down and the spindle locked. Use the correct torque wrench and clamping screw specified by the toolholder manufacturer to seat the insert without cracking the carbide. Inspect the pocket and clamping components for wear or debris before seating a new insert. Handle solid carbide inserts carefully to avoid chipping the cutting edges.