Kennametal 1712603 Threading Insert 18 Tpi Un Carbide

Product Description

The KENNAMETAL 1712603 is a solid carbide laydown threading insert designed for external UN thread cutting at 18 threads per inch (TPI). Designated by ISO code LT16ER18UNCB, this insert features a right-hand cutting orientation and a TiAlN coating applied via PVD process, which improves wear resistance and tool life at elevated cutting temperatures. The KC5010 grade is engineered for threading operations on steel, stainless steel, cast iron, superalloys, and titanium. With an inscribed circle of 3/8 inches and a thickness of 0.1430 inches (3.44 mm), this insert fits standard ER-style laydown threading toolholders used in CNC turning and threading applications.

This insert is suited for external threading on turned components across residential, commercial, and industrial machining environments. It is installed in compatible ER-style laydown insert toolholders on CNC lathes and turning centers. The 18 TPI UN thread form makes it appropriate for producing standard Unified National thread profiles on a range of workpiece materials including steel alloys and titanium-based superalloys. Machinists and toolroom technicians working with precision thread-turned parts will find this insert applicable to both production and maintenance machining contexts.

Key Features

• Solid carbide construction with PVD-applied TiAlN coating for extended tool life in abrasive and high-temperature cuts
• Right-hand external UN thread form at 18 TPI for standard Unified National thread production
• KC5010 manufacturer grade rated for steel, stainless steel, cast iron, superalloys, and titanium
• ER insert style in size code 16 with 3/8-inch inscribed circle for precise toolholder seating
• CB chipbreaker geometry for controlled chip evacuation during threading passes
• Insert thickness of 0.1430 inches (3.44 mm) and hole diameter of 0.1551 inches for secure clamping

Compatibility

Designed as an OEM-style replacement laydown threading insert for ER-style size 16 threading toolholders compatible with external UN thread applications at 18 TPI.

Installation Notes

Installation of carbide threading inserts should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before removing or seating the insert. Use the correct torque driver or clamp screw tool specified by the toolholder manufacturer to secure the insert - do not overtighten by hand or with unapproved tools. Verify thread form, TPI, and hand orientation against the workpiece drawing before initiating the threading cycle.