This standard specifies the types and dimensions of Morse taper shank cylindrical ball head mold milling cutters. This standard applies to Morse taper shank cylindrical ball head mold milling cutters with a ball head diameter of 4 to 63 mm.
JB/T 7966.3-1999 history
1999JB/T 7966.3-1999 Die milling cutters Part 3: End milling cutter with Morse taper shank and cylindrical ball head