Drill Sizes
| Drill |
actual |
actual |
7/8 scale |
Comments |
|
0.25 |
1/4 |
|
|
|
0.234 |
15/64 |
|
|
|
0.219 |
7/32 |
3" |
|
|
0.203 |
13/64 |
|
|
|
0.188 |
3/16 |
|
|
|
0.172 |
11/64 |
|
|
|
0.156 |
5/32 |
|
|
| 26 |
0.147 |
|
2" |
6-32 clr |
| |
0.141 |
9/64 |
2" |
6-32 clr |
| |
0.125 |
1/8 |
1 5/8" |
4-40 clr |
| 31 |
0.12 |
|
1 5/8" |
4-40 clr |
|
0.109 |
7/64 |
|
6-32 tap |
| 36 |
0.107 |
|
1 7/16" |
3-48 clr 6-32 tap |
| |
0.094 |
3/32 |
|
2-56 clr 4-40 tap |
| 42 |
0.094 |
|
1 1/4" |
2-56 clr |
| 43 |
0.089 |
|
|
2-56 clr |
| 44 |
0.086 |
|
1 3/16" |
4-40 tap |
|
0.08 |
|
|
#12 AWG |
| 47 |
0.079 |
|
1 1/16" |
1-72 clr |
| |
0.078 |
5/64 |
1 1/16" |
1-72 clr |
| 48 |
0.076 |
|
1" |
3-48 tap |
| 50 |
0.07 |
|
|
2-56 tap |
| 51 |
0.067 |
|
7/8" |
0-80 clr |
|
0.641 |
|
|
#14 AWG |
| 52 |
0.064 |
|
7/8" |
|
| |
0.063 |
1/16 |
|
#14 AWG 2-56 tap
drive screws clear |
| 53 |
0.06 |
|
3/4" |
1-72 tap |
| 54 |
0.055 |
|
|
|
| 55 |
0.052 |
|
11/16" |
#16 AWG 00-90 clr 0-80 tap drive screws
as rivets |
| 56 |
0.047 |
3/64 |
|
00-90 clr drive screws to hold |
| 57 |
0.043 |
|
|
|
| 58 |
0.042 |
|
|
|
| 59 |
0.041 |
|
|
#18 AWG |
| 60 |
0.04 |
|
|
|
| 61 |
0.039 |
|
|
#19 AWG |
| 62 |
0.038 |
|
|
00-90 tap |
| 63 |
0.037 |
|
1/2" |
|
| 64 |
0.036 |
|
|
|
| 65 |
0.035 |
|
|
spikes |
| 66 |
0.033 |
|
|
|
| 67 |
0.032 |
|
|
#20 AWG |
|
0.031 |
1/32 |
|
|
| 68 |
0.031 |
|
|
|
| 69 |
0.029 |
|
|
|
| 70 |
0.028 |
|
|
|
| 71 |
0.026 |
|
|
|
| 72 |
0.025 |
|
|
#22 AWG |
| 73 |
0.024 |
|
|
|
| 74 |
0.023 |
|
|
|
| 75 |
0.021 |
|
|
|
| 76 |
0.02 |
|
|
#24 AWG |
| 77 |
0.018 |
|
|
|
| 78 |
0.016 |
|
|
|
|
0.016 |
1/64 |
|
|
| 79 |
0.015 |
|
|
|
| 80 |
0.014 |
|
|
|
|
|
|
|
|
Carl Brummer
|