|
Besly Drill Selector for X-Press Taps Fractional Sizes |
||||
|---|---|---|---|---|
| Tap Size | Drill Size | Decimal Equivalent |
Theoretical Hole Size |
% of Thread |
| 1/4-20 | 5.70mm | .2244 | .2245 | 75 |
| 1 | .2280 | .2280 | 65 | |
| 1/4-28 | 5.90mm | .2323 | .2329 | 75 |
| A | .2340 | .2343 | 65 | |
| 15/64 | .2344 | .2354 | 60 | |
| 5/16-18 | 7.20mm | .2835 | .2842 | 75 |
| 7.25mm | .2854 | .2861 | 70 | |
| 7.30mm | .2874 | .2879 | 65 | |
| L | .2900 | .2898 | 60 | |
| 5/16-24 | 7.40mm | .2913 | .2912 | 75 |
| 7.50mm | .2953 | .2955 | 60 | |
| 3/8-16 | 8.75mm | .3445 | .3452 | 70 |
| 8.80mm | .3465 | .3474 | 65 | |
| 3/8-24 | 9.00mm | .3443 | .3552 | 70 |
| T | .3580 | .3580 | 60 | |
| 7/16-14 | Y | .4040 | .4059 | 65 |
| 7/16-20 | 10.50mm | .4134 | .4137 | 70 |
| 1/2-13 | 11.80mm | .4646 | .4660 | 65 |
| 1/2-20 | 12.00mm | .4724 | .4745 | 75 |
| 9/16-12 | 13.20mm | .5197 | .5200 | 75 |
| 9/16-18 | 13.50mm | .5315 | .5342 | 75 |
| 5/8-11 | 37/64 | .5781 | .5787 | 75 |
| 14.75mm | .5807 | .5817 | 70 | |
| 5/8-18 | 19/32 | .5937 | .5967 | 75 |
| 15.25mm | .6004 | .6004 | 65 | |
| 3/4-10 | 45/64 | .7031 | .7058 | 65 |
| 3/4-16 | 23/32 | .7187 | .7202 | 70 |