Carmex 3/8EXRHA60P Threading Insert 60 Degree 3/8 Ic Carbide

Product Description

The CARMEX 3/8EXRHA60P is a solid carbide, uncoated laydown threading insert designed for right-hand external partial profile 60-degree thread cutting. It features a 3/8 inch inscribed circle (IC) and a thickness of 0.146 inches. The insert covers a thread pitch range of 48 to 16 TPI, making it well suited for a wide range of unified and metric-style external threading operations on CNC lathes and turning centers. It is installed and changed by machinists and CNC operators working in precision machining environments where consistent thread form and long insert life are required.

This insert is intended for external threading applications on turning equipment in both production and job-shop settings. The partial profile geometry accommodates multiple thread pitches within the 48 to 16 TPI range without requiring a dedicated insert for each pitch. The solid carbide construction without coating is appropriate for applications where uncoated grades provide the edge sharpness and surface finish required, particularly on non-ferrous materials and certain steel alloys. It is typically used in CNC lathe toolholders designed for the ER laydown insert system.

Key Features

• Solid carbide uncoated construction for sharp edge retention and precise thread form
• Right-hand external partial profile 60-degree thread geometry
• Covers 48 to 16 TPI range with a single insert
• 3/8 inch inscribed circle for compatibility with standard ER laydown toolholders
• 0.146 inch insert thickness for stable seating in the toolholder pocket
• Laydown style orientation for secure clamping during threading cuts

Compatibility

Designed as an OEM-style replacement or direct-fit insert for CNC lathe toolholders accepting 3/8 inch IC ER-style laydown threading inserts with a 60-degree partial profile geometry.

Installation Notes

Installation is performed by machinists or CNC operators during planned insert changes or toolholder setup. Power down and lock out the machine spindle before removing or seating any indexable insert. Use the appropriate torque wrench and insert key specified by the toolholder manufacturer when tightening the clamping screw - do not overtighten, as carbide inserts are brittle and can crack under excessive clamp force. Verify insert seating and pocket cleanliness before resuming cutting operations.