Kennametal 1943801 Ceramic Turning Insert RNG45T0420

Product Description

The KENNAMETAL 1943801 is a round ceramic turning insert carrying industry standard code RNG45T0420 and manufacturer grade KY1540. Designed for high wear-resistance in demanding machining operations, this uncoated ceramic insert features a full-radius round shape with an inscribed circle diameter of 0.5 inches and a 0.3125-inch thickness. The flat-top chip breaker geometry and T-Land cutting edge style provide stable, consistent performance when cutting hardened materials. With 8 available cutting edges and a negative rake and side clearance configuration, this insert delivers extended tool life per indexable position. Licensed HVAC techs handle HVAC, but this part is installed by machinists and CNC tooling technicians.

The 1943801 is suited for turning, facing, and boring operations on steel, superalloys, and titanium. Its KY1540 ceramic grade targets hardened material groups where high wear-resistance is essential. The maximum depth of cut reaches 0.0492 inches (1.25 mm), making it appropriate for finishing and light semi-finishing passes. The insert mounts via clamp-style holding and fits KENDEX series toolholders. Applications span production turning on CNC lathes and machining centers across industrial manufacturing environments.

Key Features

• Round insert shape (R) with full radius and 0.5-inch inscribed circle for continuous 360-degree cutting edge
• 8 indexable cutting edges per insert for extended tool life and lower cost per edge
• KY1540 uncoated ceramic grade engineered for high wear-resistance on hardened materials, superalloys, and titanium
• Flat-top chip breaker with T-Land cutting edge style for stable chip control in difficult-to-machine materials
• Negative rake and side clearance (clearance code N) for strong, supported edge geometry
• Compatible with turning, facing, and boring operations in a single insert geometry

Compatibility

Designed for use in KENDEX series clamp-style toolholders accepting RNG45 ANSI or RNG120700 ISO insert sizes. Verified multi-use application across turning, facing, and boring operations per manufacturer specifications.

Installation Notes

Installation is performed by qualified CNC tooling technicians or machinists. Always power down and lock out the machine before indexing or replacing inserts. Ensure the toolholder seat and clamp surfaces are clean and free of chips before seating the insert. Torque the clamp fastener to the toolholder manufacturer specification — do not use impact drivers on insert clamp screws.