This little box of carbide magic is a game-changer for anyone who takes their milling seriously. With a multi-layer coat, the RPMT10T3 MOE JS (R5) inserts are like a superhero's armor - tough, durable, and ready to take on any challenge. And they don't just look cool; they work like a charm on both steel and stainless steel, leaving behind a smooth and precise finish. One thing to keep in mind, though - these inserts are not for the faint of heart. They require advanced skills and experience to use to their full potential. But once you get the hang of it, you'll be amazed at how effortless and efficient your milling can become. So, if you're in the market for a high-performing milling insert, look no further than the RPMT10T3 MOE JS (R5). Just be prepared to unleash the shredder of steel and stainless within you!