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 |