drill size | B&S | mm | inches | |
---|---|---|---|---|
0 | 8.26 | .325 | 21/64 | |
1 | 7.34 | .289 | 9/32 | |
2 | 6.52 | .257 | 1/4 | |
1 | 3 | 5.81 | .229 | 7/32 |
6 | 4 | 5.18 | .204 | 13/64 |
15 | 5 | 4.62 | .182 | 3/16 |
20 | 6 | 4.11 | .162 | 5/32 |
27 | 7 | 3.66 | .144 | 9/64 |
30 | 8 | 3.25 | .128 | 1/8 |
9 | 2.90 | .114 | ||
38 | 10 | 2.59 | .102 | |
43 | 11 | 2.31 | .091 | |
46 | 12 | 2.06 | .081 | 5/64 |
50 | 13 | 1.83 | .072 | |
51 | 14 | 1.63 | .064 | 1/16 |
52 | 15 | 1.45 | .057 | |
54 | 16 | 1.30 | .051 | |
55 | 17 | 1.14 | .045 | 3/64 |
56 | 18 | 1.02 | .040 | |
60 | 19 | 0.914 | .036 | |
65 | 20 | 0.812 | .032 | 1/32 |
67 | 21 | 0.711 | .028 | |
70 | 22 | 0.635 | .025 | |
71 | 23 | 0.558 | .022 | |
74 | 24 | 0.508 | .020 | |
75 | 25 | 0.457 | .018 | |
77 | 26 | 0.406 | .016 | 1/64 |
78 | 27 | 0.355 | .014 | |
79 | 28 | 0.304 | .012 | |
80 | 29 | 0.279 | .011 | |
30 | 0.254 | .010 |