This set of 10 Sumitomo DCMT 21.50.5 ESU AC610M turning/boring inserts are a top-quality choice for your metalworking needs. Made in Japan with carbide insert material, these indexable inserts are suitable for a range of applications. With a focus on durability and precision, they are sure to meet your expectations. The brand name speaks for itself, and these inserts are no exception to the Sumitomo reputation. Whether you're an experienced machinist or just starting out, these inserts are an excellent addition to any toolholding collection. Upgrade your turning and boring capabilities with this set of high-performing inserts.