ER20 3/16″ Collet

Crafted from heat-treated high-carbon bearing steel, ensuring enhanced flexibility and extended lifespan. Every collet undergoes meticulous Swiss-style grinding and honing, followed by individual inspection and precision testing to ensure impeccable accuracy.
Designed to seamlessly integrate with DR, RD, ESX, AR, and BR series collets. Experience minimal runout (T.I.R.) with only a remarkable .0002” measurement, while enjoying a collapse range of 0.039”.