Machinist

  Thread Size Class Nominal Minor Dia. Minimum  Minor Dia. Maximum  Major Dia. Thread Size Cutting Tap Drill Form Tap Drill 00-90 2B 0.0470 .0350 .0393 0.0470 00-90 #65 X 0-80 2B 0.0600 0.0465 0.0514 0.0600 0-80 3/64 #54 1-64 2B 0.0730 0.0561 0.0623 0.0730 1-64 #53 #51 1-72 2B 0.0730 0.0580 0.0635 0.0730 1-72…