Transcription of Tap Drill Chart - CNC Basics
1 Tap Drill Chart129 Tap Drill Chart (Standard 2B)Nominal Pipe Tap SizeNPT & NPTFw/o Reamer w/Reamer1/16-27CA1/8-27Q21/641/4-187/162 7/643/8-189/169/161/2-1445/6411/163/4-14 29/3257/641 - 11 1/21 9/641 1/811/4 - 11 1/21 31/641 15/3211/2 - 11 1/21 23/321 45/642 - 11 1/22 3/162 11/64 Pipe Tap Drill ChartNominal Pipe Tap SizeNPSMNPSCNPSF1/16-27-1/4D1/8-27TQ R1/4-1815/327/167/163 - 11 1/21 13/641 5/321 5/3211/4 - 11 1/21 35/641 1/2-11/2 - 11 1/21 25/321 47/64-2 - 11 1/22 1/42 13/64-Tap Drill Chart (Metric H6)Tap SizeCut Tap DrillRoll Tap DrillMinor Major 0-803 # # # # # # # # # # # # # # # # # # # # # # # # # **.182/. # # # **.216/. **.279/. **.341/. SizeCut Tap DrillRoll Tap DrillMinor Major x . x . # x . x . x . x . x . x . x . x . # x x x x x x x x x x x x x x x x ** x ** x ** x ** x ** x ** x ** x ** x ** x ** x ** x ** x ** x ** SizeCut Tap DrillRoll Tap DrillMinor Major 7 **.
2 299/. **.461/. **.517/. **.580/. **.597/. **.642/. **.696/. **.722/. **.745/. **.758/. **.755/. **.798/. **.821/. **.847/. **.870/. **.883/. - 87 **.865/.89011 - 1259 **.910/.92811 - 2061 **.946/.9571 Italics = Metric * - Form Tap not available or not standard. Check with Tap Manufacturer for required Drill size .
