The COL ER SET ER11 includes seven precision collets, perfect for a variety of machining tasks. Manufactured by Field Tool Supply, this set is designed to accommodate tools with shank sizes compatible with ER11 collet systems. Each collet is crafted from high-grade steel, ensuring durability and precision. The set provides a range of sizes, allowing for versatility in applications from milling to drilling. With a focus on minimizing runout, these collets enhance tool performance and accuracy, making them essential for any machinist's toolkit.