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The CARMEX C18I0.5ISOMT7 is a single-point threading insert designed for cutting internal ISO-standard threads on CNC lathes and turning centers. Built from a submicron carbide substrate and finished with a TiAlN coating, it delivers extended tool life and consistent thread form in demanding production environments. The MT7 manufacturer grade targets general-purpose to medium-duty threading applications. This insert is specified and installed by machinists and CNC tooling technicians in precision machining shops and manufacturing facilities.
This insert is suited for internal threading operations where ISO thread standards are required. It fits applications in job shops, aerospace component machining, hydraulic fitting production, and general industrial manufacturing. The C18 insert style designates the specific geometry and seating configuration used in compatible toolholders. Typical applications include threading bores in steel, stainless steel, and similar machinable alloys where a TiAlN-coated submicron grade provides an advantage over uncoated options.
Designed as an OEM-style replacement threading insert for CNC turning toolholders accepting the C18 insert style for internal ISO threading applications.
Threading inserts are installed and replaced by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the appropriate torx or hex key to secure the insert clamp to the manufacturer-specified seating torque noted in the toolholder documentation. Inspect the insert pocket and clamp for debris or wear before seating a new insert to ensure proper support and thread accuracy.
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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