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The CARMEX 3/8EXRHG60P25C is a laydown-style indexable threading insert designed for external right-hand thread turning on CNC lathes and threading machines. Built from solid carbide with a TiN (titanium nitride) gold finish, this insert cuts partial-profile 60-degree threads across a range of thread forms including Unified (UN) and metric-compatible 60-degree standards. The 3/8-inch inscribed circle and 0.146-inch thickness fit standard laydown threading toolholders. The insert covers a thread pitch range of 14 to 8 TPI, making it suitable for medium to coarse threading work in production environments.
This insert is intended for use in machine shops, metalworking facilities, and production turning operations where external threading is performed on lathes or turning centers. The partial-profile geometry allows a single insert to cover multiple thread pitches within its TPI range without requiring a pitch-specific full-profile insert for each job. It is typically selected by machinists, toolroom technicians, and CNC programmers working on carbon steel, alloy steel, and similar machinable materials where TiN-coated carbide provides adequate wear resistance and tool life.
Designed as an OEM-style replacement or direct-use insert for standard laydown threading toolholders accepting a 3/8-inch IC laydown threading insert with a 0.146-inch seat thickness.
Laydown threading inserts are installed and replaced by machinists or CNC toolroom personnel. Power down and lock out the machine spindle before seating or indexing the insert. Use the correct torx or hex key to the toolholder manufacturer's specified procedure when clamping the insert. Inspect the toolholder pocket for debris or wear before installation to ensure flat seating and accurate thread form.
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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