High Helix Drills
Ideal for use in easily machined material such as aluminum, magnesium, zinc die casting and some brasses. Wide bright flutes make chip removal easier.
Sizes
Series JL30 - Jobbers Length HS
Series TL30 - Taper Length HS
Series EL830 - 8" O/A Length, 6" Flute HS
Series EL1230 - 12" O/A Length, 9" Flute HS
Also Available - Taper Shank HS
| Size | Decimal |
| 1/8" | .1250 |
| 3.20mm | .1260 |
| 3.25mm | .1280 |
| #30 | .1285 |
| 3.30mm | .1299 |
| 3.40mm | .1339 |
| #29 | .1360 |
| 3.50mm | .1378 |
| 9/64" | .1406 |
| 3.60mm | .1417 |
| #27 | .1440 |
| 3.70mm | .1457 |
| #26 | .1470 |
| 3.75mm | .1476 |
| #25 | .1495 |
| #24 | .1520 |
| 3.90mm | .1535 |
| #23 | .1540 |
| 5/32" | .1562 |
| #22 | .1570 |
| 4.00mm | .1575 |
| #21 | .1590 |
| #20 | .1610 |
| 4.10mm | .1614 |
| 4.20mm | .1654 |
| #19 | .1660 |
| 4.25mm | .1673 |
| # 18 | .1695 |
| 11/64" | .1719 |
| # 17 | .1730 |
| # 16 | .1770 |
| #15 | .1800 |
| 4.60mm | .1811 |
| #14 | .1820 |
| #13 | .1850 |
| 4.75mm | .1870 |
| 3/16" | .1875 |
| #12 | .1890 |
| #11 | .1910 |
| 4.90mm | .1929 |
| #10 | .1935 |
| #9 | .1960 |
| 5.00mm | .1969 |
| #8 | .1990 |
| #7 | .2010 |
| 13/64" | .2031 |
| #6 | .2040 |
| 5.20mm | .2047 |
| #5 | .2055 |
| 5.25mm | .2067 |
| 5.30mm | .2087 |
| #4 | .2090 |
| 5.40mm | .2126 |
| #3 | .2130 |
| 5.50mm | .2165 |
| 7/32" | .2188 |
| 5.60mm | .2205 |
| #2 | .2210 |
| 5.70mm | .2244 |
| 5.75mm | .2264 |
| #1 | .2280 |
| 5.90mm | .2323 |
| A | .2340 |
| 15/64" | .2344 |
| 6.00mm | .2362 |
| B | .2380 |
| 6.10mm | .2402 |
| C | .2420 |
| 6.20mm | .2441 |
| D | .2460 |
| 6.30mm | .2480 |
| 1/4" | .2500 |
| 6.40mm | .2520 |
| 6.50mm | .2559 |
| F | .2570 |
| 6.60mm | .2598 |
| G | .2610 |
| 6.70mm | .2638 |
| 17/64" | .2656 |
| H | .2660 |
| 6.80mm | .2677 |
| I | .2720 |
| 7.00mm | .2756 |
| J | .2770 |
| 7.10mm | .2795 |
| 9/32" | .2812 |
| 7.20mm | .2835 |
| 7.25mm | .2854 |
| 7.30mm | .2874 |
| L | .2900 |
| 7.40mm | .2913 |
| M | .2950 |
| 19/64" | .2969 |
| 7.60mm | .2992 |
| N | .3020 |
| 7.70mm | .3031 |
| 7.75mm | .3051 |
| 7.80mm | .3071 |
| 7.85mm | .3091 |
| 7.90mm | .3110 |
| 5/16" | .3125 |
| 8.00mm | .3150 |
| 0 | .3160 |
| 8.10mm | .3189 |
| P | .3230 |
| 8.25mm | .3248 |
| 8.30mm | .3268 |
| 21/64" | .3281 |
| 8.40mm | .3307 |
| Q | .3320 |
| 8.50mm | .3346 |
| 8.60mm | .3386 |
| R | .3390 |
| 8.70mm | .3425 |
| 11/32" | .3438 |
| 8.75mm | .3445 |
| 8.80mm | .3465 |
| S | .3480 |
| 8.90mm | .3504 |
| 9.00mm | .3543 |
| T | .3580 |
| 23/64" | .3594 |
| 9.20mm | .3622 |
| 9.25mm | .3642 |
| 9.30mm | .3661 |
| U | .3680 |
| 9.40mm | .3701 |
| 9.50mm | .3740 |
| 3/8" | .3750 |
| V | .3770 |
| 9.60mm | .3780 |
| 9.70mm | .3819 |
| 9.75mm | .3839 |
| W | .3860 |
| 9.90mm | .3898 |
| 25/64" | .3906 |
| 10.00mm | .3937 |
| X | .3970 |
| 10.20mm | .4106 |
| Y | .4040 |
| 13/32" | .4062 |
| 10.40mm | .4094 |
| Z | .4130 |
| 10.50mm | .4134 |
| 10.60mm | .4173 |
| 27/64" | .4219 |
| 10.80mm | .4252 |
| 10.90mm | .4291 |
| 11.00mm | .4331 |
| 7/16" | .4375 |
| 29/64" | .4531 |
| 15/32" | .4688 |
| 12.00mm | .4724 |
| 31/64" | .4844 |
| 12.50mm | .4921 |
| 1/2" | .5000 |
| 13.00mm | .5118 |
| 33/64" | .5156 |
| 17/32" | .5312 |
| 35/64" | .5469 |
| 14.00mm | .5512 |
| 9/16" | .5625 |
| 14.50mm | .5709 |
| 37/64" | .5781 |
| 15.00mm | .5906 |
| 19/32" | .5938 |
| 39/64" | .6094 |
| 15.50mm | .6102 |
| 5/8" | .6250 |
| 16.00mm | .6299 |
| 41/64" | .6406 |
| 16.50mm | .6496 |
| 21/32" | .6562 |
| 17.00mm | .6693 |
| 43/64" | .6719 |
| 11/16" | .6875 |