ANSI Tap Drill Size as Percentage of Engagement Calculator
Cells blue are editable
Basic Major Diameter Bmd = in
Percent full thread engagement Pft = %
Number of threads Nti = thrds/in
Results
Drilled Hole size Hs = in
 
Metric ISO Tap Drill Size as Percentage of Engagement Calculator
Cells blue are editable
Basic Major Diameter Bmd = mm
Percent full thread engagement Pft = %
Pitch P = thrds/mm
Results
Drilled Hole size Hs = mm