Introducing the ER32 Collet Tool Holder by KM—a precision CNC accessory crafted from high-quality 40cr and 20crmnti steel, featuring a hardness of HRC48-HRC52. With high accuracy of 0.005mm and flexibility to clamp various round shank tools, it ensures top performance in milling, drilling, and more. Designed for CNC and engraving machines, it meets diverse manufacturing needs. Welcome to visit our website!