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The CARMEX 3/8EXRH10UNP2 is a laydown threading insert designed for right-hand external UN thread cutting at 10 threads per inch. Manufactured from solid carbide with a PVD-applied TiN coating, it carries a P25C manufacturer grade and a C5 material grade. The insert measures 3/8 inches inscribed circle and 0.146 inches thick. It is intended for use on CNC lathes and threading machines by machinists and toolroom technicians working in metal fabrication, job shops, and production environments where precision UN-standard external threads are required.
This insert suits a broad range of workpiece materials, including steels, stainless steels, cast irons, non-ferrous metals, high-temperature alloys, and other materials corresponding to ISO material groups H, K, M, N, P, and S. The 16 ER insert style fits compatible 16-series external threading toolholders. The 60-degree included angle conforms to UN thread geometry. It is well suited for both general-purpose threading operations and applications where a consistent, repeatable thread form is needed across production runs.
Designed for use in 16-series external threading toolholders that accept the 16 ER laydown insert style. Compatible with workpiece material groups H, K, M, N, P, and S per ISO classification. Confirm toolholder pocket geometry and insert seating requirements before installation.
Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine is fully de-energized and the spindle is locked before changing inserts. Use the manufacturer-specified torque wrench for the clamping screw and verify the insert seats flush in the pocket with no rocking. Inspect the threading toolholder pocket for wear or debris before seating a new insert.
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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