The WNMG 432 Indexable Carbide Turning Inserts prove to be a cut above the rest when it comes to processing aluminum and brass. These durable lathe tool inserts provide a high-quality finish with their sharp edges that can outlast the toughest materials. And while we're absolutely enamored with the quality of the inserts, we still can't help but feel that some improvements could be made to the manufacturer's packaging. Overall, we highly recommend these inserts for anyone in need of a reliable tool for handling aluminum and brass.