|
On Sale
Value Packs
New Products
All Products
Catalog
Store Location
Outlet Store
Machinist's Calculator
lmscnc.com/calc
|
|
Letter Drill Sizes
This chart shows the diameters of letter gauge drills size A (the smallest) to size Z (the largest).
| Drill |
Inch |
mm |
| A |
0.234 |
5.94 |
| B |
0.238 |
6.05 |
| C |
0.242 |
6.15 |
| D |
0.246 |
6.25 |
| E |
0.250 |
6.35 |
| F |
0.257 |
6.53 |
| G |
0.261 |
6.63 |
| H |
0.266 |
6.76 |
| I |
0.272 |
6.91 |
| J |
0.277 |
7.04 |
| K |
0.281 |
7.14 |
| L |
0.29 |
7.37 |
| M |
0.295 |
7.49 |
| N |
0.302 |
7.67 |
| O |
0.316 |
8.03 |
| P |
0.323 |
8.20 |
| Q |
0.332 |
8.43 |
| R |
0.339 |
8.61 |
| S |
0.348 |
8.84 |
| T |
0.358 |
9.09 |
| U |
0.368 |
9.35 |
| V |
0.377 |
9.58 |
| W |
0.386 |
9.80 |
| X |
0.397 |
10.08 |
| Y |
0.404 |
10.26 |
| Z |
0.413 |
10.49 |
|
