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The CARMEX 30I16UNMT7 is a carbide thread mill insert engineered for internal UN threading operations at 16 teeth per inch (TPI). Built from submicron carbide and coated with TiAlN (Titanium Aluminum Nitride), this insert delivers high heat resistance and extended tool life in demanding thread milling applications. The MT7 manufacturer grade designates the specific substrate and coating combination suited for a wide range of ferrous and non-ferrous materials. At 0.217 inches (5.5 mm) thick, the insert profile is compact and consistent with the Style 30I form factor. This insert is installed by machinists and tooling technicians operating CNC milling centers.
This insert is used in thread milling applications where internal UN-standard threads must be produced with precision. The UN thread standard (ANSI B1.1-1989) governs Unified National thread forms common in North American machining environments. At 16 TPI, this insert suits medium-pitch thread production in typical hole diameters encountered in production machining, job shop work, and precision component manufacturing.
Designed for use with thread mill bodies accepting the Style 30I insert in internal UN threading applications at 16 TPI. Verify seating pocket dimensions and clamping specifications against your tool body documentation before installation.
This insert is installed by qualified machinists or tooling technicians on CNC milling equipment. Power down and lock out the spindle before changing inserts. Use the appropriate torx or hex key as specified by the tool body manufacturer for clamping torque. Inspect the seating pocket for chips or wear before seating the new insert to ensure proper contact and runout.
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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