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Drill Bit Chart

METRIC - GREEN FRACTIONAL - RED WIRE GAGE - PURPLE LETTER SIZE - BLUE
Tap Size & Pitch Cutting Taps Forming Taps   Tap Size & Pitch Cutting Taps Forming Taps
InchMetric Drill SizeDec. Equiv. Drill SizeDec. Equiv.   InchMetric Drill SizeDec. Equiv. Drill SizeDec. Equiv.
0-80 3/64.0469 54.0550   M12 x 1,75 10,20.4016 11,20.4409
M1,6 x 0,35 1,25.0492 1,54.0571   M12 x 1,25 10,80.4252 11,50.4528
M1,8 x 0,35 1,45.0571 1,65.0650   1/2-13 27/64.4219 15/32.4682
1-64 53.0595 51.0670   1/2-20 29/64.4531 12,25.4823
1-72 53.0595 51.0670   M14 x 2,00 12,00.4724 33/64.5156
M2 x 0,40 1,60.0630 1,80.0709   9/16-12 31/64.4844 17/32.5315
2-56 50.0700 5/64.0781   9/16-18 33/64.5156 13,50.5215
2-64 50.0700 47.0785   5/8-11 17/32.5312 14,75.5807
M2,2 x 0,45 1,75.0689 2,00.0787   5/8-18 37/64.5781 15,25.6004
M2,5 x 0,45 2,05.0807 2,30.0906   M16 x 2,00 14,00.5512 19/32.5938
3-48 47.0785 43.0890   M16 x 1,50 14,50.5709 15,25.6004
3-56 46.0810 2,30.0905   M18 x 2,50 15,50.6102 39/64.6094
4-40 43.0890 38.1015   M18 x 1,50 16,50.6496 17,25.6791
4-48 42.0935 2,60.1024   3/4-10 21/32.6562 45/64.7031
M3 x 0,50 2,50.0984 7/64.1094   3/4-16 11/16.6875 23/32.7188
5-40 38.1015 33.1130   M20 x 2,50 17,50.6890    
5-44 37.1040 2,90.1142   M20 x 1,50 18,50.7283    
M3,5 x 0,60 2,90.1142 3,20.1260   M22 x 2,50 19,50.7677    
6-32 36.1065 1/8.1250   M22 x 1,50 20,50.8071    
6-40 33.1130 3,25.1280   7/8-9 49/64.7656    
M4 x 0,70 3,30.1299 3,70.1476   7/8-14 13/16.8125    
8-32 29.1360 25.1495   M24 x 3,00 21,00.8268    
8-36 29.1360 24.1520   M24 x 2,00 22,00.8661    
M4,5 x 0,75 3,70.1476 4,10.1614   1-8 7/8.8750    
10-24 26.1470 11/64.1719   1-12 59/64.9219    
10-32 21.1590 16.1770   M27 x 3,00 24,00.9449    
M5 x 0,80 4,20.1654 14.1820   M27 x 2,00 25,00.9843    
12-24 16.1770 8.1990   1-1/8-7 36/64.9844    
12-28 15.1800 7.2010   1-1/8-12 1-3/641.0469    
M6 x 1,00 5,00.1969 7/32.2188   M30 x 3,50 26,501.0433    
1/4-20 7.2010 1.2280   M30 x 2,00 28,001.1024    
1/4-28 3.2130 15/64.2340   1-1/4-7 1-7/641.1094    
M7 x 1,00 6,00.2362 F.2570   1-1/4-12 1-11/641.1719    
5/16-18 F.2570 L.2900   M33 x 3,50 29,501.1614    
5/16-24 I.2720 M.2950   M33 x 2,00 31,001.2205    
M8 x 1,25 6,70.2638 7,40.2913   1-3/8-6 1-7/321.2188    
M8 x 1,00 7,00.2756 19/64.2969   1-3/8-12 1-19/641.2969    
3/8-16 5-16.3125 S.3480   M36 x 4,00 32,001.2598    
3/8-24 Q.3320 T.3580   M36 x 3,00 33,001.2992    
M10 x 1,50 8,50.3346 U.3680   1--1/2-6 1-11/321.3438    
M10 x 1,25 8,70.3425 9,40.3701   1-1/2-12 1-27/641.4219    
7/16-14 U.3680 Y.4040   M39 x 4,00 35,001.3780    
7/16-20 25/64.3906 Z.4130   M39 x 3,00 36,001.4173