Kennametal 1724835 Threading Insert 10 Tpi 3/8 in KC5025

Product Description

The KENNAMETAL 1724835 is a solid carbide laydown threading insert designed for external UN thread cutting operations. Running under the ISO code LT16ER10UN and Kennametal grade KC5025, this insert delivers 10 threads per inch (TPI) with a right-hand cutting orientation. The PVD-applied TiAlN coating enhances wear resistance and thermal stability, making it well suited for demanding thread-turning applications. With a 3/8-inch inscribed circle and a thickness of 0.1430 inches (3.44 mm), it seats in standard ER-style laydown toolholders. Machinists and CNC lathe operators rely on this insert grade for consistent thread form and tool life in production environments.

This insert is intended for external threading on a range of workpiece materials including steel, stainless steel, cast iron, superalloys, and titanium. It is commonly used in CNC turning centers and manual lathes where UN-standard thread forms are required. The KC5025 grade with TiAlN PVD coating is engineered to maintain cutting-edge integrity across interrupted cuts and varying surface conditions typical in job-shop and production machining environments.

Key Features

• ISO code LT16ER10UN — ER insert style, size 16, right-hand external UN thread at 10 TPI
• KC5025 grade solid carbide with PVD TiAlN coating for wear and heat resistance
• 3/8-inch (9.53 mm) inscribed circle for positive seating in ER-style laydown holders
• Thickness of 0.1430 inches (3.44 mm) for rigid, repeatable insert positioning
• Compatible workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium
• Hole diameter of 0.1551 inches (3.94 mm) for secure mechanical clamping

Compatibility

Designed for use in ER-style laydown threading toolholders accepting size 16 inserts with an ISO LT16ER designation. Confirmed compatible workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine before changing inserts. Seat the insert fully in the pocket and torque the clamping screw to the toolholder manufacturer specification before resuming operation. Inspect the insert seat and clamping surfaces for chips or debris prior to installation to ensure accurate thread form and prevent premature edge failure.