ST-ER-S : A DIN 6499 ER collet chuck with oil hole and a straight shank.
  DesignationSSCSId mind maxD3D2LL1L2TJkgGICATGIREMgiic
  ST 20X 65 ER20S 20ER201.0013.0034.040.0063.0031.065.0034.0M120.4304603629 0
  ST 20X 65 ER25S 20ER251.0016.0042.072.0072.0032.065.0051.0M120.3004652260 0
  ST 20X 65 ER32S 20ER322.0020.0050.063.0077.0041.065.0059.0M120.9604603631 0
  ST 32X 65 ER32S 32ER322.0020.0050.063.0077.0041.065.0059.0M18X1.51.1404603634 0
  ST 40X 75 ER32S 40ER322.0020.0050.063.0077.0041.075.0059.0M22X1.54.6004603635 0