DRILL SIZE DECIMAL EQUIVALENTS

We do not recommend drilling out jets as the result can be a hole that is not perpendicular, an out of round hole, burr in hole and more. Most do not have the equipment to properly drill ou the jet and the needle to jet relationship is degraded. However sometimes in a pinch drilling out a jet will be needed. The following information is provided as a reference.

Drill size Diameter (in) Diameter (mm)
#107 0.0019 0.0483
0.05 mm 0.002 0.05
#106 0.0023 0.0584
#105 0.0027 0.0686
#104 0.0031 0.0787
#103 0.0035 0.0889
#102 0.0039 0.0991
0.1 mm 0.0039 0.1
#101 0.0043 0.1092
#100 0.0047 0.1194
#99 0.0051 0.1295
#98 0.0055 0.1397
#97 0.0059 0.1499
#96 0.0063 0.16
#95 0.0067 0.1702
#94 0.0071 0.1803
#93 0.0075 0.1905
0.2 mm 0.0079 0.2
#92 0.0079 0.2007
#91 0.0083 0.2108
#90 0.0087 0.221
#89 0.0091 0.2311
#88 0.0095 0.2413
#87 0.01 0.254
#86 0.0105 0.2667
#85 0.011 0.2794
#84 0.0115 0.2921
0.3 mm 0.0118 0.3
#83 0.012 0.3048
#82 0.0125 0.3175
#81 0.013 0.3302
#80 0.0135 0.3429
#79 0.0145 0.368
1/64 in 0.0156 0.3969
0.4 mm 0.0158 0.4
#78 0.016 0.4064
#77 0.018 0.4572
0.5 mm 0.0197 0.5
#76 0.02 0.508
#75 0.021 0.5334
#74 0.0225 0.5715
0.6 mm 0.0236 0.6
#73 0.024 0.6096
#72 0.025 0.635
#71 0.026 0.6604
0.7 mm 0.0276 0.7
#70 0.028 0.7112
#69 0.0292 0.7417
#68 0.031 0.7874
1/32 in 0.0313 0.7938
0.8 mm 0.0315 0.8
#67 0.032 0.8128
#66 0.033 0.8382
#65 0.035 0.889
0.9 mm 0.0354 0.9
#64 0.036 0.9144
#63 0.037 0.9398
#62 0.038 0.9652
#61 0.039 0.9906
1 mm 0.0394 1
#60 0.04 1.016
#59 0.041 1.0414
#58 0.042 1.0668
#57 0.043 1.0922
1.1 mm 0.0433 1.1
#56 0.0465 1.1811
3/64 in 0.0469 1.1906
1.2 mm 0.0472 1.2
1.3 mm 0.0512 1.3
#55 0.052 1.3208
#54 0.055 1.397
1.4 mm 0.0551 1.4
1.5 mm 0.0591 1.5
#53 0.0595 1.5113
1/16 in 0.0625 1.5875
1.6 mm 0.063 1.6
#52 0.0635 1.6129
1.7 mm 0.0669 1.7
#51 0.067 1.7018
#50 0.07 1.778
1.8 mm 0.0709 1.8
#49 0.073 1.8542
1.9 mm 0.0748 1.9
#48 0.076 1.9304
5/64 in 0.0781 1.9844
#47 0.0785 1.9939
2 mm 0.0787 2
#46 0.081 2.0574
#45 0.082 2.0828
2.1 mm 0.0827 2.1
#44 0.086 2.1844
2.2 mm 0.0866 2.2
#43 0.089 2.2606
2.3 mm 0.0906 2.3
#42 0.0935 2.3749
3/32 in 0.0938 2.3813
2.4 mm 0.0945 2.4
#41 0.096 2.4384
#40 0.098 2.4892
2.5 mm 0.0984 2.5
#39 0.0995 2.5273
#38 0.1015 2.5781
2.6 mm 0.1024 2.6
#37 0.104 2.6416
2.7 mm 0.1063 2.7
#36 0.1065 2.7051
7/64 in 0.1094 2.7781
#35 0.11 2.794
2.8 mm 0.1102 2.8
#34 0.111 2.8194
#33 0.113 2.8702
2.9 mm 0.1142 2.9
#32 0.116 2.9464
3 mm 0.1181 3
#31 0.12 3.048
3.1 mm 0.1221 3.1
1/8 in 0.125 3.175
3.2 mm 0.126 3.2
#30 0.1285 3.2639
3.3 mm 0.1299 3.3
3.4 mm 0.1339 3.4
#29 0.136 3.4544
3.5 mm 0.1378 3.5
#28 0.1405 3.5687
9/64 in 0.1406 3.5719
3.6 mm 0.1417 3.6
#27 0.144 3.6576
3.7 mm 0.1457 3.7
#26 0.147 3.7338
#25 0.1495 3.7973
3.8 mm 0.1496 3.8
#24 0.152 3.8608
3.9 mm 0.1535 3.9
#23 0.154 3.9116
5/32 in 0.1563 3.9688
#22 0.157 3.9878
4 mm 0.1575 4
#21 0.159 4.0386
#20 0.161 4.0894
4.1 mm 0.1614 4.1
4.2 mm 0.1654 4.2
#19 0.166 4.2164
4.3 mm 0.1693 4.3
#18 0.1695 4.3053
11/64 in 0.1719 4.3656
#17 0.173 4.3942
4.4 mm 0.1732 4.4
#16 0.177 4.4958
4.5 mm 0.1772 4.5
#15 0.18 4.572
4.6 mm 0.1811 4.6
#14 0.182 4.6228
#13 0.185 4.699
4.7 mm 0.185 4.7
3/16 in 0.1875 4.7625
4.8 mm 0.189 4.8
#12 0.189 4.8006
#11 0.191 4.8514
4.9 mm 0.1929 4.9
#10 0.1935 4.9149
#9 0.196 4.9784
5 mm 0.1969 5
#8 0.199 5.0546
5.1 mm 0.2008 5.1