Drill Bit Chart

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Categories: [Reference Charts]

FractionGaugeinchmm
1040.00310.079
1030.00350.089
1020.00390.099
1010.00430.109
1000.00470.119
990.00510.13
980.00550.14
970.00590.15
960.00630.16
950.00670.17
940.00710.18
930.00750.191
920.00790.201
910.00830.211
900.00870.221
890.00910.231
880.00950.241
870.010.254
860.01050.267
850.0110.279
840.01150.292
830.0120.305
820.01250.318
810.0130.33
800.01350.343
790.01450.368
1/640.01560.3969
780.0160.406
770.0180.457
760.020.508
750.0210.533
740.02250.572
730.0240.61
720.0250.635
710.0260.66
700.0280.711
690.02920.742
680.0310.787
1/320.03130.7938
670.0320.813
660.0330.838
650.0350.889
640.0360.914
630.0370.94
620.0380.965
610.0390.991
600.041.016
590.0411.041
580.0421.067
570.0431.092
560.04651.181
3/640.04691.1906
550.0521.321
540.0551.397
530.05951.511
1/160.06251.5875
520.06351.613
510.0671.702
500.071.778
490.0731.854
480.0761.93
5/640.07811.9844
470.07851.994
460.0812.057
450.0822.083
440.0862.184
430.0892.261
420.09352.375
3/320.09382.3813
410.0962.438
400.0982.489
390.09952.527
380.10152.578
370.1042.642
360.10652.705
7/640.10942.7781
350.112.794
340.1112.819
330.1132.87
320.1162.946
310.123.048
1/80.1253.175
300.12853.264
290.1363.454
280.14053.569
9/640.14063.5719
270.1443.658
260.1473.734
250.14953.797
240.1523.861
230.1543.912
5/320.15633.9688
220.1573.988
210.1594.039
200.1614.089
190.1664.216
180.16954.305
11/640.17194.3656
170.1734.394
160.1774.496
150.184.572
140.1824.623
130.1854.699
3/160.18754.7625
120.1894.801
110.1914.851
100.19354.915
90.1964.978
80.1995.055
70.2015.105
13/640.20315.1594
60.2045.182
50.20555.22
40.2095.309
30.2135.41
7/320.21885.5563
20.2215.613
10.2285.791
A0.2345.944
15/640.23445.9531
B0.2386.045
C0.2426.147
D0.2466.248
E0.256.35
1/40.256.35
F0.2576.528
G0.2616.629
17/640.26566.7469
H0.2666.756
I0.2726.909
J0.2777.036
K0.2817.137
9/320.28137.1438
L0.297.366
M0.2957.493
19/640.29697.5406
N0.3027.671
5/160.31257.9375
O0.3168.026
P0.3238.204
21/640.32818.3344
Q0.3328.433
R0.3398.611
R0.3398.611
11/320.34388.7313
S0.3488.839
S0.3488.839
T0.3589.093
T0.3589.093
23/640.35949.1281
U0.3689.347
U0.3689.347
3/80.3759.525
V0.3779.576
V0.3779.576
W0.3869.804
25/640.39069.9219
X0.39710.08
Y0.40410.26
13/320.406310.3188
Z0.41310.49
27/640.421910.7156
7/160.437511.1125
29/640.453111.5094
15/320.468811.9063
31/640.484412.3031
1/20.512.7
33/640.515613.0969
17/320.531313.4938
35/640.546913.8906
9/160.562514.2875
37/640.578114.6844
19/320.593815.0813
39/640.609415.4781
5/80.62515.875
41/640.640616.2719
21/320.656316.6688
43/640.671917.0656
11/160.687517.462
45/640.703117.8594
23/320.718818.2563
47/640.734418.6531
3/40.7519.05
49/640.765619.4469
25/320.781319.8438
51/640.796920.2406
13/160.812520.6375
53/640.828121.0344
27/320.843821.4313
55/640.859421.8281
7/80.87522.225
57/640.890622.6219
29/320.906323.0188
59/640.921923.4156
15/160.937523.8125
61/640.953124.2094
31/320.968824.6063
63/640.984425.0031
1125.4