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The VALUE COLLECTION 2877079 is a solid carbide on-edge threading insert designed for cutting both external and internal 60-degree V-form threads. Built to manufacturer grade TCN55 with a PVD Titanium Nitride (TiN) coating, this insert delivers extended wear resistance and reduced friction in demanding threading operations. It carries a 5/8-inch inscribed circle (IC) and a 0.2500-inch thickness, fitting standard toolholders designed for TNMC-style inserts. Machinists and tool-and-die professionals use this insert on CNC lathes and manual threading machines when producing precision thread forms in a range of workpiece materials rated for C3-grade carbide.
This insert is suited for threading operations in metal fabrication, production machining, and job-shop environments. The 60-degree V thread standard covers the most common unified and metric thread profiles encountered in general manufacturing. The on-edge seating geometry positions the cutting edge for stable engagement during both external threading of shafts and studs and internal threading of bored holes. It is appropriate for use in ferrous and non-ferrous workpieces where a TiN-coated carbide grade provides adequate tool life.
Designed as an OEM-style replacement threading insert for TNMC-style toolholders accepting a 5/8-inch inscribed circle insert with a 0.2500-inch thickness.
Installation is performed by a machinist or tool-room technician. Power down and lock out the machine spindle before seating or replacing the insert. Secure the insert firmly in the toolholder pocket using the appropriate torquing tool per the toolholder manufacturer's specification. Inspect the insert seat and clamping components for chips or wear before each insert change to ensure proper edge positioning during threading passes.
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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