Tungaloy Corporation has expanded its RoundSplit series of tooling to include inserts with a serrated cutting edge and wear-resistant PVD grade AH3135 for improved stability and surface finish in steel and stainless steel machining.

Tjhe company said that in general machining, operations involving long overhangs are prone to chatter, making it difficult to maintain stable machining quality. In addition, in workplaces where both steel and stainless steel are machined, different insert grades suitable for each material must be used, which increases the complexity of tool management and setup changes. As a result, there is a growing demand for versatile tools that offer high resistance to chatter.

RoundSplit is a round insert type face milling cutter that ensures stable machining by suppressing vibration. Its unique serrated cutting edge design reduces cutting resistance, enabling high productivity even in long overhang or high-feed machining applications.

The inserts feature serrated (wave-shaped) cutting edges that effectively disperse vibrations during machining. It suppresses chatter even under long overhang conditions, ensuring stable cutting, and prevents surface roughness and tool life reduction caused by vibration, enabling high-quality finishes.

The company added that the inserts with the new PVD Grade AH3135 can achieve high-chipping resistance as the grade offers a balance of wear resistance and toughness. It minimizes edge chipping and breakage during interrupted cutting or under unstable machining conditions, thereby extending tool life and reducing the frequency of tool changes, which improves productivity and cost efficiency.