CHA : 45° chamfering holders used on the MB modular boring system.
  Designationd mind maxDaD1LkgGICATGIREMgiic
  CHA 16-45 18.0028.0016.00028.0013.000.0604652565 0
  CHA 20-45 23.0032.0020.00032.0015.000.0704652566 0
  CHA 25-45 28.0043.0025.00043.0018.000.1204652567 0
  CHA 32-45 35.0054.0032.00054.0022.000.2204652568 0
  CHA 40-45 46.0072.0040.00072.0030.000.5304652569 0
  CHA 50-45 56.0095.0050.00095.0038.001.1504652570 0

To minimize mismatch use insert radius 0.2 mm.
(1)Only one insert can be mounted on either one of the two pockets.