Pre-Tapping Hole Sizes - Forming Taps Pre-Tapping Hole Sizes - General Taps

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DrillDrill
MPitch mmSize mmMFPitch mmSize mmUNCT.P.IMax. Core Dia.Drill SizeUNFT.P.IMax. Core DiaDrill Size
10.250.92.50.352.37inchmm. inchmm
1.10.2512.60.352.47#1641.5851.5#080130613
1.20.251.130.352.88..
1.40.31.283.50.353.38#2561.8721.8#1721.6131.6
1.60.351.4740.53.8#3482.1462.1#2641.9131.9
1.70.351.5750.54.8#4402.3852.3#3562.1972.1
1.80.351.6760.55.8#5402.6972.6#4482.4592.4
20.41.8560.755.7#6322.8962.85#5442.7412.7
2.20.452.0370.756.7#8323.5283.5#6403.0123
2.30.42.1580.757.7#10243.953.9#8363.5973.5
2.50.452.33817.6#12244.594.5#10324.1684.1
2.60.452.4390.758.71/4"205.255.2#12284.7174.7
30.52.8918.65/16"186.686.61/4"285.5635.5
3.50.63.25100.759.73/8"168.08285/16"246.9956.9
40.73.71019.67/16"149441943/8"24856585
4.50.754.2101.259.45"....
50.84.6511110.61/21310.88110.757/16"209.9479.9
615.5512111.69/16"1212.30112.251/2"2011.52411.5
716.55121.2511.455/8"1113.69313.59/16"1812.96912.9
81.256.6121.511.353/4"1016.62416.55/8"1814.55414.5
91.257.4514113.67/8"919.5219.53/4"1617.54617.5
101.58.45141.2513.451"822.34422.257/8"1420.49320.5
111.59.35141.513.3511/8"725.082251"1223.36323.25
121.7511.2515114.611/4"728.25828.2511/8"1226.53826.5
14213.1151.514.3513/8"630.85130.7511/4"1229.71329.5
16215.116115.611/2"634.0263413/8"1232.88832.7
182.516.85161.515.3513/4"5395639511/2"123606336
202.518.8518417.6"...
222.520.85181.517.3524.545.36745.25
24322.6518217.1
27325.6520119.6
303.528.4201.519.35
333.531.420219.1
36434.1524223.1
39437.1530229.1
424.539.936334.65
454.542.942440.15
48545.6548346.65