Carmex 16IR0.5ISOP25C Threading Insert Iso 0.5mm Solid Carbide

Product Description

The CARMEX 16IR0.5ISOP25C is a solid carbide laydown threading insert designed for internal ISO threading operations on CNC lathes and turning centers. Built to grade P25C with a C5 material grade, this insert carries a PVD-applied TiN coating for improved wear resistance and edge life on steel and general-purpose materials. The inscribed circle measures 3/8 inch (0.375 inches) with a thickness of 0.146 inches. The right-hand cutting geometry and 0.5mm ISO pitch make it a direct fit for high-precision internal thread cutting where consistent thread form and surface finish are required.

This insert is used in internal threading applications on CNC turning equipment across production machining, job shops, and maintenance repair environments. It is suited for threading steel and similar materials where the P25C grade offers a balance of toughness and wear resistance. The 0.5mm ISO pitch targets fine-thread internal bores common in hydraulic fittings, instrument housings, and general mechanical assemblies. It is installed by machinists and CNC operators using compatible 16IR-series toolholders.

Key Features

• Solid carbide construction at material grade C5 for rigidity and dimensional stability
• PVD TiN coating improves surface hardness and extends tool life on steel workpieces
• Right-hand internal cut geometry for standard ISO thread direction
• 0.5mm ISO thread pitch for fine-pitch internal threading operations
• 3/8 inch inscribed circle with 0.146 inch thickness matches 16IR-series toolholder seats
• Laydown insert style provides consistent seating and repeatable thread form

Compatibility

Designed for use with 16IR-series internal threading toolholders accepting laydown-style inserts with a 3/8 inch inscribed circle and 0.5mm ISO pitch profile.

Installation Notes

Installation is performed by CNC machinists and manual lathe operators. Power down and de-energize the machine before changing inserts. Seat the insert fully against the toolholder pocket and tighten the clamping screw to the toolholder manufacturer's specified torque using a calibrated torque driver. Verify thread pitch and hand orientation against the workpiece drawing before initiating a threading cycle.