Drills and taps
There's nothing like the wrong size drill to make tapping a hole impossible, or a dull one to make a mess of a project.
Like any tool, a better tool works better.
Tap drill sizes
Size | Dec. |
Equiv. | |
A | 0.2340 |
B | 0.2380 |
C | 0.2420 |
D | 0.2460 |
E | 0.2500 |
F | 0.2570 |
G | 0.2610 |
H | 0.2660 |
I | 0.2710 |
J | 0.2770 |
K | 0.2810 |
L | 0.2900 |
M | 0.2950 |
N | 0.3020 |
O | 0.3160 |
P | 0.3230 |
Q | 0.3320 |
R | 0.3390 |
S | 0.3480 |
T | 0.3580 |
U | 0.3680 |
V | 0.3770 |
W | 0.3860 |
X | 0.3970 |
Y | 0.4040 |
Z | 0.4130 |