Kennametal 1712602 Threading Insert 16 Tpi Un Carbide

Product Description

The KENNAMETAL 1712602 is a laydown threading insert designed for external UN thread cutting at 16 threads per inch (TPI). It carries the ISO designation LT16ER16UNCB and is manufactured in solid carbide with a TiAlN coating applied via PVD process. The insert features an ER-style geometry with a CB chipbreaker, a 3/8-inch (9.53 mm) inscribed circle, and a thickness of 0.1430 inches (3.44 mm). Manufacturer grade KC5025 is optimized for threading operations in steel, stainless steel, cast iron, superalloys, and titanium. Licensed HVAC technicians do not install this part - it is a machining consumable used by machinists and tooling specialists on CNC lathes and threading centers.

This insert is suited for external UN threading operations in production and job-shop environments. It is a right-hand insert, making it appropriate for standard right-hand thread profiles. Primary workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium. The PVD TiAlN coating provides wear resistance and thermal stability during high-speed threading passes, making it practical for both interrupted and continuous threading cuts on turned components.

Key Features

• ISO code LT16ER16UNCB - ER insert style with CB chipbreaker
• Solid carbide construction with PVD TiAlN coating for extended tool life
• 16 TPI external UN thread standard, right-hand cutting direction
• Manufacturer grade KC5025 rated for steel, stainless steel, cast iron, superalloys, and titanium
• 3/8-inch inscribed circle (9.53 mm); thickness 0.1430 inches (3.44 mm)
• Hole diameter 0.1551 inches (3.94 mm) for secure clamping in compatible toolholders

Compatibility

Designed as an OEM-style laydown threading insert for use in ER-style insert threading toolholders accepting a size-16 insert with a 3/8-inch inscribed circle and UN external thread geometry.

Installation Notes

Installation is performed by machinists or tooling technicians on CNC lathes or manual threading equipment. Power down and lock out the machine spindle before seating or replacing the insert. Verify the toolholder clamping screw torque matches the toolholder manufacturer specification - do not estimate. Confirm insert orientation and thread hand before initiating a threading pass.