DIN 4003-87
DIN 4003-87 Concept for the design of 3D models based on properties according to DIN 4000 - Part 87: End mills for indexable inserts
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2013
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2013