. Method B - Using the interpolation factor
1.8F
100C ×= 180F difference
1C
Appendix
Page 702
Apr 1/05
20-00-02/70-00-01
Table 701. Inch Fraction, Decimal, Millimeter Equivalent
Inch Decimal Millimeter Inch Decimal Millimeter
1/64 0.0156 0.397 33/64 0.5156 13.097
1/32 0.0312 0.794 17/32 0.5312 13.494
3/64 0.0469 1.191 0.5469 13.891
1/16 0.0625 1.587 9/16 0.5625 14.288
5/64 0.0781 1.984 37/64 0 5781 14.686
3/32 0.0937 2.381 19/32 0.5937 15.081
7/64 0.1094 2.778 39/64 0.6094 15.478
1/8 0.1250 3.175 5/8 0.6250 15.875
9/64 0.1406 3.572 41/64 0.6406 16.272
5/32 0.1562 3.969 21/32 0.6562 16.669
11/64 0.1719 4.366 43/64 0.6719 17.065
3/16 0.1875 4.762 11/16 0.6875 17.462
13/64 0.2031 5.159 45/64 0.7031 17.859
7/32 0.2187 5.556 23/32 0.7187 18.256
15/64 0.2344 5.953 47/64 0.7344 18.653
1/4 0.2500 6.350 3/4 0.7500 19.050
17/64 0.2656 6.747 49/64 0.7656 19.447
9/32 0.2812 7.144 25/32 0.7812 19.844
19/64 0.2969 7.540 51/64 0.7969 20.241
5/16 0.3125 7.937 13/16 0.8125 20.637
21/64 0.3281 8.334 53/64 0.8281 21.034
11/32 0.3437 8.731 27/32 0.8437 21.431
23/64 0.3594 9.128 55/64 0.8594 21.828
3/8 0.3750 9.525 7/8 0.8750 22.225
25/64 0.3906 9.922 57/64 0.8906 22.622
13/32 0.4062 10.319 29/32 0.9062 23.019
27/64 0.4219 10.716 59/64 0.9219 23.416
7/16 0.4375 11.112 15/16 0.9375 23.812
29/64 0.4531 11.509 61/64 0.9531 24.209
15/32 0.4687 11.906 31/32 0.9687 24.606
31/64 0.4844 12.303 63/64 0.9844 25.003
1/2 0.5000 12.700 1 1.0000 25.400
Appendix
Page 703
Apr 1/05
20-00-02/70-00-01
Table 702. Drill Size Decimal Equivalent
Drill Diameter Diameter Diameter Diameter
Letter (inch) Drill No. (inch) Drill No. (Inch) Drill No. (inch)
A 0.234 1 0.2280 28 0.1405 55 0.0520
B 0.238 2 0.2210 29 0.1360 56 0.0465
C 0.242 3 0.2130 30 0.1285 57 0.0430
D 0.246 4 0.2090 31 0.1200 58 0.0420
E 0.250 5 0.2055 32 0.1160 59 0.0410
F 0.257 6 0.2040 33 0.1130 60 0.0400
G 0.261 7 0.2010 34 0.1110 61 0.0390
H 0.266 8 0.1990 35 0.1100 62 0.0380
I 0.272 9 0.1960 36 0.1065 63 0.0370
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