ER Collets ER 25 Suppliers In Chennai ER 25 Collet Systems the entire range of our products is manufactured using top-notch raw material sourced from authentic vendors of the industry. The ER 25 Collet Systems products are sturdily built and ensure longer functional life. Specifications of ER 25 Collet Systems: Standard precision High precision 0.5 mm. increments Clamping range (mm.)