Clamping range equal to the standard collets made to DIN 6499 form B.
FAHRION Collets DIN6499/ISO15488-B (ER/ESX) set the standard of
concentricity and repeatability, which is 5 µm for the types GER11-B up to GER40-B and 2 µm
for the types GER11-HP up to GER40-HP