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The CARMEX 22IR5ACMEP30 is a solid carbide laydown threading insert designed for cutting internal Acme threads on a lathe or threading machine. This right-hand insert runs at 5 threads per inch (TPI) with a 29-degree included angle, making it the correct geometry for standard Acme thread forms. The 0.5 inch inscribed circle (IC) and 0.187 inch thickness place it in a commonly used indexable insert size. The P30 carbide grade and bright uncoated finish make it suitable for a wide range of workpiece materials without the added cost of a specialized coating. Machinists and toolroom operators install this insert into a compatible laydown-style threading toolholder.
This insert is used in internal Acme thread applications across general machining, toolroom, and production turning environments. Acme threads are commonly found in lead screws, power transmission components, vises, and linear actuators. The 22IR insert style fits toolholders designed for the 22-series laydown geometry. The P30 uncoated grade is effective on a broad spectrum of materials, including steels, cast irons, non-ferrous metals, and stainless alloys, making it a practical choice for job shops handling varied work.
Designed for use in toolholders accepting the 22IR laydown threading insert style. Confirm toolholder seat geometry and clamping style before installation to ensure proper seating and thread form accuracy.
This insert is installed by a machinist or toolroom professional into a compatible indexable threading toolholder. Power down the machine and secure the workpiece before changing inserts. Use the correct torque screwdriver or clamping key specified by the toolholder manufacturer - do not over-tighten the clamping screw. Verify thread pitch and insert orientation against the job drawing before beginning a threading pass.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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