Kennametal 4053333 Threading Insert CPT20052R KCU10

Product Description

The KENNAMETAL 4053333 is a carbide threading insert designed for precision external thread-cutting operations on CNC lathes and turning centers. Manufactured to the CPT20052R style in a right-hand configuration, this insert carries the KCU10 grade designation and features an AlTiN finish applied via PVD coating process. The AlTiN coating provides thermal resistance and extended tool life when threading ferrous materials at elevated cutting speeds. With a 60-degree included angle, it covers standard ISO thread forms. The inscribed circle measures 0.2500 inches (6.35 mm), and the insert thickness is 0.075 inches (1.91 mm).

This insert is suited for threading operations across a range of pitch applications, covering internal pitches from 1.00 to 2.50 mm and 10 to 24 TPI. It is used in production and job-shop environments on conventional and CNC turning equipment wherever ISO-standard thread profiles are required. The PVD-coated KCU10 grade is well matched to steel and stainless applications where a tough, wear-resistant edge is needed. Machinists and tool-crib specialists in precision machining, aerospace, and general metalworking will recognize this insert as a standard catalog replacement.

Key Features

• KCU10 carbide grade with PVD-applied AlTiN coating for thermal and wear resistance
• Right-hand, CPT-style insert geometry for ISO thread forms
• 60-degree included angle covers standard V-thread profiles
• Pitch range: 1.00 to 2.50 mm and 10 to 24 TPI in a single insert
• Corner radius of 0.0050 inches (0.13 mm) for controlled thread-root geometry
• Insert size 20052 with 0.2500-inch inscribed circle for standard toolholders

Compatibility

Designed as an OEM-style replacement threading insert compatible with CPT-style toolholders accepting a 20052 insert size with a 0.2500-inch inscribed circle.

Installation Notes

Threading inserts of this type are installed and indexed by qualified machinists or toolroom technicians. Disengage machine power and lock out the spindle before changing inserts. Use the appropriate torx or hex key to the toolholder manufacturer's specified seating procedure - do not overtighten the clamping screw. Inspect the seating pocket for chips or debris before installing a fresh edge, as contamination will affect thread accuracy.