Kennametal 1724291 Threading Insert 32 Tpi 3/8 in Ic KC5010

Product Description

The KENNAMETAL 1724291 is a solid carbide laydown threading insert designed for external UN thread cutting at 32 threads per inch (TPI). Carrying the ISO code LT16ER32UN and manufactured to the KC5010 grade, this right-hand insert features a PVD-applied TiAlN coating for extended tool life in demanding cutting environments. The inscribed circle measures 3/8 inch (9.53 mm), and the insert thickness is 0.143 inch (3.44 mm). It is suited for CNC lathes and turning centers where consistent thread form and dimensional accuracy are required across production runs.

This insert is engineered for external UN threading operations on steel, stainless steel, cast iron, superalloys, and titanium. The ER-style laydown geometry and 32 TPI configuration make it a practical choice for threading operations on medium-pitch fastener profiles and precision components. It is installed by machinists and CNC operators in job shop, production machining, and maintenance machining environments where repeatable thread quality is critical. Minimum order quantity is 10 units; individual package quantity is 1.

Key Features

• KC5010 grade solid carbide substrate with PVD TiAlN coating for wear resistance on ferrous and difficult-to-machine alloys
• Right-hand, external UN thread form at 32 TPI for medium-pitch threading applications
• ER insert style (size code 16) in laydown configuration for stable seating in compatible toolholders
• 3/8 inch inscribed circle with 0.143 inch thickness for consistent insert indexing and fit
• Hole diameter of 0.1551 inch (3.94 mm) for secure clamping in standard screw-lock toolholders
• Compatible primary workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium

Compatibility

Designed for use in threading toolholders that accept ER-style size 16 laydown inserts. Compatible workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium as specified by the manufacturer.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Power down and lock out the machine spindle before indexing or replacing the insert. Use the correct torque screwdriver or key specified for the toolholder to avoid over-tightening the clamping screw, which can crack the carbide insert. Inspect the insert pocket and seating surface for chips or debris before seating a new insert to ensure accurate thread form and prevent premature failure.