DIN 8002
DIN 8002
Metal-cutting Tools; Hobs for Spur Gears, with Clutch Drive Slot or Keyway, Modules 1 to 20standard by Deutsches Institut Fur Normung E.V. (German National Standard), 01/01/1955
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 01/01/1955