ISO-4204 Complete Document History
Countersinks, 90°, with Morse taper shanks and detachable pilots

Complete Current Edition:
   2ND EDITION - Countersinks, 90¦, with Morse taper shanks and detachable pi - Oct. 15, 2016

Obsolete Revision Information:
   1ST EDITION - Countersinks, 90 degrees, with Morse taper shanks and detach - Feb. 1, 1977