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The KENNAMETAL 1724418 is a solid carbide laydown threading insert designed for internal thread cutting on CNC lathes and turning centers. Carrying the LT16NRAG60 form factor and manufactured to the KC5010 grade, this insert features a PVD-applied TiAlN coating that delivers heat resistance and extended edge life under high-speed threading conditions. It is configured for right-hand cutting and profiles a 60-degree partial thread form, covering a pitch range of 0.50 to 3.00 mm (48 to 8 TPI). The inscribed circle measures 3/8 inches (9.53 mm) and the insert thickness is 0.1430 inches (3.44 mm). Licensed machinists and CNC operators in production and job-shop environments rely on this insert for consistent thread form accuracy across ferrous and non-ferrous materials.
This insert is suited for internal threading operations in residential and industrial machining applications where a 60-degree partial profile thread is required. The partial profile design makes it versatile across multiple thread pitches within the 48 to 8 TPI range, reducing tooling inventory. It is used in turning centers equipped with 16NR-style insert pockets. Typical applications include threading bores in hydraulic fittings, fastener components, and precision mechanical assemblies.
Designed as an OEM-style replacement for 16NR-style laydown threading insert pockets used in internal threading toolholders accepting a 3/8-inch inscribed circle insert.
Installation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the correct torx or hex key to the toolholder manufacturer's clamping specification when securing the insert. Inspect the insert pocket for chips or debris before seating the new insert to ensure proper contact and prevent edge chipping on the first pass.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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