Standard Drill Sizes
Fractional, numbered and metric, with some drill point lengths
| SIZE |DECIMAL| PNT | SIZE |DECIMAL| PNT | SIZE |DECIMAL| PNT | SIZE |DECIMAL| PNT |
| | EQUIV | LNG | | EQUIV | LNG | | EQUIV | LNG | | EQUIV | LNG |
|-----------------------------------------------------------------------------------|
|80 .0135 |2.6mm .1024 |2 .2210 .067 |V .3770 |
|79 .0145 |37 .1040 .031 |5.7mm .2244 |9.6mm .3780 |
|1/64 .0156 |2.7mm .1063 |5.75mm .2264 |9.7mm .3819 |
|78 .0160 |36 .1065 .032 |1 .2280 .068 |9.75mm .3839 |
|77 .0180 |2.75mm .1083 |5.8mm .2283 |9.8mm .3858 |
|76 .0200 |7/64 .1094 |5.9mm .2323 |W .3860 |
|75 .0210 |35 .1100 .033 |A .2340 |9.9mm .3898 |
|74 .0225 |2.8mm .1102 |15/64 .2344 .070 |25/64 .3906 .117 |
|73 .0240 |34 .1110 .033 |6mm .2362 |10mm .3937 |
|72 .0250 |33 .1130 .034 |B .2380 |X .3970 |
|71 .0260 |2.9mm .1142 |6.1mm .2402 |Y .4040 |
|70 .0280 |32 .1160 .035 |C .2420 |13/32 .4063 .122 |
| | | |Z .413 |
|69 .0292 |3mm .1181 |6.2mm .2441 |10.5mm .4134 |
|68 .0310 |31 .1200 .036 |D .2460 |27/64 .4219 .127 |
|1/32 .0312 |1/8 .1250 |6.25mm .2461 |11mm .4331 |
|67 .0320 |3.1mm .1220 |6.3mm .2480 |7/16 .4375 .131 |
|66 .0330 |3.2mm .1260 |1/4 .2500 .075 |11.5mm .4528 |
|65 .0350 |3.25mm .1280 |E .2500 |29/64 .4531 .136 |
|64 .0360 |30 .1285 .039 |6.4mm .2520 |15/32 .4688 .141 |
|63 .0370 |3.3mm .1299 |6.5mm .2559 |12mm .4724 |
|62 .0380 |3.4mm .1339 |F .2570 |31/64 .4844 .145 |
|61 .0390 |29 .1360 .041 |6.6mm .2598 |12.5mm .4921 |
|1mm .0394 |3.5mm .1378 |G .2610 |1/2 .5000 .150 |
|60 .0400 .012 |28 .1405 .042 |6.7mm .2638 |13mm .5118 |
|59 .0410 .012 |9/64 .1406 |17/64 .2656 .080 |33/64 .5156 .155 |
|1.05mm .0413 |3.6mm .1417 |6.75mm .2657 |17/32 .5312 .159 |
|58 .0420 .013 |27 .1440 .043 |H .2660 |13.5mm .5315 |
|57 .0430 .013 |3.7mm .1457 |6.8mm .2677 |35/64 .5469 .164 |
|1.1mm .0433 |26 .1470 .044 |6.9mm .2717 |14mm .5512 |
|1.15mm .0453 |3.75mm .1476 |I .2720 |9/16 .5625 .169 |
|56 .0465 .014 |25 .1495 .045 |7mm .2756 |14.5mm .5709 |
|3/64 .0469 |3.8mm .1496 |J .2770 |37/64 .5781 .173 |
|1.2mm .0472 |24 .1520 .046 |7.1mm .2795 |15mm .5906 |
|1.25mm .0492 |3.9mm .1535 |K .2810 |19/32 .5938 .178 |
|1.3mm .0512 |23 .1540 .046 |9/32 .2812 .084 |39/64 .6094 .183 |
|55 .0520 .016 |5/32 .1562 |7.2mm .2835 |15.5mm .6102 |
|1.35mm .0531 |22 .1570 .047 |7.25mm .2854 |5/8 .6250 .188 |
|54 .0550 .017 |4mm .1575 |7.3mm .2874 |16mm .6299 |
|1.4mm .0551 |21 .1590 .048 |L .2900 |41/64 .6406 .192 |
|1.45mm .0571 |20 .1610 .048 |7.4mm .2913 |16.5mm .6496 |
|1.5mm .0591 |4.1mm .1614 |M .2950 |21/32 .6562 .197 |
|53 .0595 .018 |4.2mm .1654 |7.5mm .2953 |17mm .6693 |
|1.55mm .0610 |19 .1660 .050 |19/64 .2969 .089 |43/64 .6719 .202 |
|1/16 .0625 |4.25mm .1673 |7.6mm .2992 |11/16 .6875 .206 |
|1.6mm .0630 |4.3mm .1693 |N .3020 |17.5mm .6890 |
|52 .0635 .019 |18 .1695 .051 |7.7mm .3031 |45/64 .7031 |
|1.65mm .0650 |11/64 .1719 |7.75mm .3051 |18mm .7087 |
|1.7mm .0669 |17 .1730 .052 |7.8mm .3071 |23/32 .7188 .216 |
|51 .0670 .020 |4.4mm .1732 |7.9mm .3110 |18.5mm .7283 |
|1.75mm .0689 |16 .1770 .053 |5/16 .3125 .094 |47/64 .7344 |
|50 .0700 .021 |4.5mm .1772 |8mm .3150 |19mm .7480 |
|1.8mm .0709 |15 .1800 .054 |O .3160 |3/4 .7500 .225 |
|1.85mm .0728 |4.6mm .1811 |8.1mm .3189 |49/64 .7656 | |
|49 .0730 .022 |14 .1820 .055 |8.2mm .3228 |19.5mm .7677 |
|1.9mm .0748 |4.7mm .1850 |P .3230 |25/32 .7812 |
|48 .0760 .023 |13 .1850 .056 |8.25mm .3248 |20mm .7874 |
|1.95mm .0768 |4.75mm .1870 |8.3mm .3268 |51/64 .7969 |
|5/64 .0781 |3/16 .1875 |21/64 .3281 .098 |20.5mm .8071 |
|47 .0785 .024 |4.8mm .1890 |8.4mm .3307 |13/16 .8125 |
|2mm .0787 |12 .1890 .057 |Q .3320 |21mm .8268 |
|2.05mm .0807 |11 .1910 .057 |8.5mm .3346 |53/64 .8281 |
|46 .0810 .024 |4.9mm .1929 |8.6mm .3386 |27/32 .8438 |
|45 .0820 .025 |10 .1935 .058 |R .3390 |21.5mm .8465 |
|2.1mm .0827 |9 .1960 .059 |8.7mm .3425 |55/64 .8594 |
|2.15mm .0846 |5mm .1968 |11/32 .3438 .103 |22mm .8661 |
|44 .0860 .026 |8 .1990 .060 |8.75mm .3445 |7/8 .8750 |
|2.2mm .0866 |5.1mm .2008 |8.8mm .3465 |22.5mm .8858 |
|2.25mm .0886 |7 .2010 .060 |S .3480 |57/64 .8906 |
|43 .0890 .027 |13/64 .2031 |8.9mm .3504 |23mm .9055 |
|2.3mm .0906 |6 .2040 .061 |9mm .3543 |29/32 .9062 |
|2.35mm .0925 |5.2mm .2047 |T .3580 |59/64 .9219 |
|42 .0935 .028 |5 .2055 .062 |9.1mm .3583 |23.5mm .9252 |
|3/32 .0938 |5.25mm .2067 |23/64 .3594 .108 |15/16 .9375 |
|2.4mm .0945 |5.3mm .2087 |9.2mm .3622 |24mm .9449 |
|41 .0960 .029 |4 .2090 .063 |9.25mm .3642 |61/64 .9531 |
|2.45mm .0965 |5.4mm .2126 |9.3mm .3661 |24.5mm .9646 |
|40 .0980 .029 |3 .2130 .064 |U .3680 |31/32 .9688 |
|2.5mm .0984 |5.5mm .2165 |9.4mm .3701 |25mm .9843 |
|39 .0995 .030 |7/32 .2188 |9.5mm .3740 |63/64 .9844 |
|38 .1015 .030 |5.6mm .2205 |3/8 .3750 .113 |1 1.0000 |