DIN 69882-8
DIN 69882-8 Tool holders with hollow taper shanks according to DIN 69893-1 - Part 8: Type G, shrink chuck - Dimensions
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2005
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2005