b'DECIMAL EQUIVALENTS DECIMAL EQUIVALENTSDecimal Equivalent Chart Decimal Equivalent ChartDecimal Decimal Decimal DecimalSize Equivalent Size Equivalent Size Equivalent Size Equivalent Decimal Decimal Decimal Decimal97 .0059 61 .0390 37 .1040 4.90 mm .1929 Size Equivalent Size Equivalent Size Equivalent Size Equivalent96 .0063 1.00 mm .0394 2.70 mm .1063 10 .1935 19/64" .2969 12.50 mm .4921 1-1/64" 1.0156 39.00 mm 1.535495 .0067 60 .0400 36 .1065 9 .1960 7.60 mm .2992 1/2" .5000 26.00 mm 1.0236 1-35/64" 1.546994 .0071 59 .0410 2.75 mm .1083 5.00 mm .1969 N .3020 13.00 mm .5118 1-1/32" 1.0312 39.50 mm 1.555193 .0075 1.05 mm .0413 7/64" .1094 8 .1990 7.70 mm .3031 33/64" .5156 26.50 mm 1.0433 1-9/16" 1.562592 .0079 58 .0420 35 .1100 5.10 mm .2008 7.75 mm .3051 17/32" .5312 1-3/64" 1.0469 40.00 mm 1.574891 .0083 57 .0430 2.80 mm .1102 7 .2010 7.80 mm .3071 13.50 mm .5315 1-1/16" 1.0625 1-37/64" 1.578190 .0087 1.10 mm .0433 34 .1110 13/64" .2031 7.90 mm .3110 35/64" .5469 27.00 mm 1.0630 1-19/32" 1.593889 .0091 1.15 mm .0453 33 .1130 6 .2040 5/16" .3125 14.00 mm .5512 1-5/64" 1.0781 40.50 mm 1.594588 .0095 56 .0465 2.90 mm .1142 5.20 mm .2047 8.00 mm .3150 9/16" .5625 27.50 mm 1.0827 1-39/64" 1.6094.25 mm .0098 3/64" .0469 32 .1160 5 .2055 O .3160 14.50 mm .5709 1-3/32" 1.0938 41.00 mm 1.614287 .0100 1.20 mm .0472 3.00 mm .1181 5.25 mm .2067 8.10 mm .3189 37/64" .5781 28.00 mm 1.1024 1-5/8" 1.625086 .0105 1.25 mm .0492 31 .1200 5.30 mm .2087 8.20 mm .3228 15.00 mm .5906 1-7/64" 1.1094 41.50 mm 1.633985 .0110 1.30 mm .0512 3.10 mm .1220 4 .2090 P .3230 19/32" .5938 28.50 mm 1.1220 1-41/64" 1.640684 .0115 55 .0520 1/8" .1250 5.40 mm .2126 8.25 mm .3248 39/64" .6094 1-1/8" 1.1250 42.00 mm 1.6535.30 mm .0118 1.35 mm .0531 3.20 mm .1260 3 .2130 8.30 mm .3268 15.50 mm .6102 1-9/64" 1.1406 1-21/32" 1.656283 .0120 54 .0550 3.25 mm .1280 5.50 mm .2165 21/64" .3281 5/8" .6250 29.00 mm 1.1417 1-43/64" 1.671982 .0125 1.40 mm .0551 30 .1285 7/32" .2188 8.40 mm .3307 16.00 mm .6299 1-5/32" 1.1562 42.50 mm 1.6732.32 mm .0126 1.45 mm .0571 3.30 mm .1299 5.60 mm .2205 Q .3320 41/64" .6406 29.50 mm 1.1614 1-11/16" 1.687581 .0130 1.50 mm .0591 3.40 mm .1339 2 .2210 8.50 mm .3346 16.50 mm .6496 1-11/64" 1.1719 43.00 mm 1.692980 .0135 53 .0595 29 .1360 5.70 mm .2244 8.60 mm .3386 21/32" .6562 30.00 mm 1.1811 1-45/64" 1.7031.35 mm .0138 1.55 mm .0610 3.50 mm .1378 5.75 mm .2264 R .3390 17.00 mm .6693 1-3/16" 1.1875 43.50 mm 1.7126.36 mm .0142 1/16" .0625 28 .1405 1 .2280 8.70 mm .3425 43/64" .6719 30.50 mm 1.2008 1-23/32" 1.718879 .0145 1.60 mm .0630 9/64" .1406 5.80 mm .2283 11/32" .3438 11/16" .6875 1-13/64" 1.2031 44.00 mm 1.7323.38 mm .0150 52 .0635 3.60 mm .1417 5.90 mm .2323 8.75 mm .3445 17.50 mm .6890 1-7/32" 1.2188 1-47/64" 1.73441/64" .0156 1.65 mm .0650 27 .1440 A .2340 8.80 mm .3465 45/64" .7031 31.00 mm 1.2205 1-3/4" 1.7500.40 mm .0157 1.70 mm .0669 3.70 mm .1457 15/64" .2344 S .3480 18.00 mm .7087 1-15/64" 1.2344 44.50 mm 1.752078 .0160 51 .0670 26 .1470 6.00 mm .2362 8.90 mm .3504 23/32" .7188 31.50 mm 1.2402 1-49/64" 1.7656.42 mm .0165 1.75 mm .0689 3.75 mm .1476 B .2380 9.00 mm .3543 18.50 mm .7283 1-1/4" 1.2500 45.00 mm 1.7717.44 mm .0173 50 .0700 25 .1495 6.10 mm .2402 T .3580 47/64" .7344 32.00 mm 1.2598 1-25/32" 1.7812.45 mm .0177 1.80 mm .0709 3.80 mm .1496 C .2420 9.10 mm .3583 19.00 mm .7480 1-17/64" 1.2656 45.50 mm 1.791377 .0180 1.85 mm .0728 24 .1520 6.20 mm .2441 23/64" .3594 3/4" .7500 32.50 mm 1.2795 1-51/64" 1.7969.46 mm .0181 49 .0730 3.90 mm .1535 D .2460 9.20 mm .3622 49/64" .7656 1-9/32" 1.2812 46.00 mm 1.8110.48 mm .0189 1.90 mm .0748 23 .1540 6.25 mm .2461 9.25 mm .3642 19.50 mm .7677 1-19/64" 1.2969 1-13/16" 1.8125.50 mm .0197 48 .0760 5/32" .1562 6.30 mm .2480 9.30 mm .3661 25/32" .7812 33.00 mm 1.2992 1-53/64" 1.828176 .0200 1.95 mm .0768 22 .1570 1/4" E .2500 U .3680 20.00 mm .7874 1-5/16" 1.3125 46.50 mm 1.830775 .0210 5/64" .0781 4.00 mm .1575 6.40 mm .2520 9.40 mm .3701 51/64" .7969 33.50 mm 1.3189 1-27/32" 1.8438.55 mm .0217 47 .0785 21 .1590 6.50 mm .2559 9.50 mm .3740 20.50 mm .8071 1-21/64" 1.3281 47.00 mm 1.850474 .0225 2.00 mm .0787 20 .1610 F .2570 3/8" .3750 13/16" .8125 34.00 mm 1.3386 1-55/64" 1.8594.60 mm .0236 2.05 mm .0807 4.10 mm .1614 6.60 mm .2598 V .3770 21.00 mm .8268 1-11/32" 1.3438 47.50 mm 1.870173 .0240 46 .0810 4.20 mm .1654 G .2610 9.60 mm .3780 53/64" .8281 34.50 mm 1.3583 1-7/8" 1.875072 .0250 45 .0820 19 .1660 6.70 mm .2638 9.70 mm .3819 27/32" .8438 1-23/64" 1.3594 48.00 mm 1.8898.65 mm .0256 2.10 mm .0827 4.25 mm .1673 17/64" .2656 9.75 mm .3839 21.50 mm .8465 1-3/8" 1.3750 1-57/64" 1.890671 .0260 2.15 mm .0846 4.30 mm .1693 6.75 mm .2657 9.80 mm .3858 55/64" .8594 35.00 mm 1.3780 1-29/32" 1.9062.70 mm .0276 44 .0860 18 .1695 H .2660 W .3860 22.00 mm .8661 1-25/64" 1.3906 48.50 mm 1.909470 .0280 2.20 mm .0866 11/64" .1719 6.80 mm .2677 9.90 mm .3898 7/8" .8750 35.50 mm 1.3976 1-59/64" 1.921969 .0292 2.25 mm .0886 17 .1730 6.90 mm .2717 25/64" .3906 22.50 mm .8858 1-13/32" 1.4062 49.00 mm 1.9291.75 mm .0295 43 .0890 4.40 mm .1732 I .2720 10.00 mm .3937 57/64" .8906 36.00 mm 1.4173 1-15/16" 1.937568 .0310 2.30 mm .0906 16 .1770 7.00 mm .2756 X .3970 23.00 mm .9055 1-27/64" 1.4219 49.50 mm 1.94881/32" .0312 2.35 mm .0925 4.50 mm .1772 J .2770 Y .4040 29/32" .9062 36.50 mm 1.4370 1-61/64" 1.9531.80 mm .0315 42 .0935 15 .1800 7.10 mm .2795 13/32" .4062 59/64" .9219 1-7/16" 1.4375 50.00 mm 1.968567 .0320 3/32" .0938 4.60 mm .1811 K .2810 Z .4130 23.50 mm .9252 1-29/64" 1.4531 1-31/32" 1.968866 .0330 2.40 mm .0945 14 .1820 9/32" .2812 10.50 mm .4134 15/16" .9375 37.00 mm 1.4567 1-63/64" 1.9844.85 mm .0335 41 .0960 13 .1850 7.20 mm .2835 27/64" .4219 24.00 mm .9449 1-15/32" 1.4688 50.50 mm 1.988265 .0350 2.45 mm .0965 4.70 mm .1850 7.25 mm .2854 11.00 mm .4331 61/64" .9531 37.50 mm 1.4764 2" 2.0000.90 mm .0354 40 .0980 4.75 mm .1870 7.30 mm .2874 7/16" .4375 24.50 mm .9646 1-31/64" 1.4844GENERAL TOOLINFORMATION64 .0360 2.50 mm .0984 3/16" .1875 L .2900 11.50 mm .4528 31/32" .9688 38.00 mm 1.496163 .0370 39 .0995 4.80 mm .1890 7.40 mm .2913 29/64" .4531 25.00 mm .9843 1-1/2" 1.5000 INFORMATION GENERAL TOOL .95 mm .0374 38 .1015 12 .1890 M .2950 15/32" .4688 63/64" .9844 1-33/64" 1.515662 .0380 2.60 mm .1024 11 .1910 7.50 mm .2953 12.00 mm .4724 1" 1.0000 38.50 mm 1.515731/64" .4844 25.50 mm 1.0039 1-17/32" 1.5312 800-942-1501 www.triumphtwistdrill.comwww.triumphtwistdrill.com800-942-150160 61'