When every micron counts, you can’t afford to trust your tooling to just any collet. The Royal Ultra‑Precision ER‑32 Standard Collet is purpose-built for machinists who demand absolute accuracy, run after run. With a guaranteed TIR of just 0.0002", this precision er collet set ensures your cutting tools stay true, delivering mirror-like finishes and extending tool life — even on the most demanding CNC jobs.