This tool is designed for efficient drilling of deep holes.
In addition, this geometry enables almost all materials including steel, aluminum and brass to be drilled efficiently.
Fractional Size | Wire Gage Sizes | ||
5/64 | .0781 | 1 | .2280 |
3/32 | .0937 | 2 | .2210 |
7/64 | .1094 | 3 | .2130 |
1/8 | .1250 | 4 | .2090 |
9/64 | .1406 | 5 | .2055 |
5/32 | .1562 | 6 | .2040 |
11/64 | .1719 | 7 | .2010 |
3/16 | .1875 | 8 | .1990 |
13/64 | .2031 | 9 | .1960 |
7/32 | .2187 | 10 | .1935 |
15/64 | .2344 | 11 | .1910 |
1/4 | .2500 | 12 | .1890 |
17/64 | .2656 | 13 | .1850 |
9/32 | .2812 | 14 | .1820 |
19/64 | .2969 | 15 | .1800 |
5/16 | .3125 | 16 | .1770 |
21/64 | .3281 | 17 | .1730 |
11/32 | .3437 | 18 | .1695 |
23/64 | .3594 | 19 | .1660 |
3/8 | .3750 | 20 | .1610 |
25/64 | .3906 | 21 | .1590 |
13/32 | .4062 | 22 | .1570 |
27/64 | .4219 | 23 | .1540 |
7/16 | .4375 | 24 | .1520 |
29/64 | .4531 | 25 | .1495 |
15/32 | .4687 | 26 | .1470 |
31/64 | .4844 | 27 | .1440 |
1/2 | .5000 | 28 | .1405 |
17/32 | .5312 | 29 | .1360 |
9/16 | .5625 | 30 | .1285 |
19/32 | .5938 | 31 | .1200 |
5/8 | .6250 | 32 | .1160 |
21/32 | .6562 | 33 | .1130 |
11/16 | .6875 | 34 | .1110 |
23/32 | .7188 | 35 | .1100 |
3/4 | .7500 | 36 | .1065 |
37 | .1040 | ||
38 | .1015 | ||
39 | .0995 | ||
40 | .0980 |