3/64" drill size
A 3/64 in drill is 0.0469 in (1.19 mm). It is the standard tap drill for #0-80 UNF; the nearest metric drill is 1.2 mm.
3/64" at a glance
Decimal, metric and the nearest sizes in the other series.
Nearest metric drills
Metric drills step by 0.05 mm below 3 mm and by 0.1 mm from 3 mm. Difference is metric minus inch size.
| Metric drill | Inch | Difference | In inches | Hole |
|---|---|---|---|---|
| 1.15 mm | 0.0453" | −0.041 mm | −0.0016" | Smaller |
| 1.2 mm | 0.0472" | +0.009 mm | +0.0004" | Larger |
Nearby inch drills
The next size down and up in each inch series, so you can pick a substitute from the drawer.
Threads a 3/64" drill can tap
Threads from the tap tables on this site that this drill can tap, with the thread percentage it leaves (55–85 % shown).
Fractional drill index
Every size in the series, holes drawn to scale.
Common questions
What size is a 3/64 in drill?
A 3/64 in drill is 0.0469 in, which is 1.19 mm (1.1906 mm exactly).
What is the metric equivalent of a 3/64 in drill?
The nearest metric drill is 1.2 mm, 0.009 mm larger. The other close size is 1.15 mm.
What tap uses a 3/64 in drill?
A 3/64 in drill is the standard tap drill for #0-80 UNF (about 81 % thread).
Which number or letter drill is closest to 3/64 in?
#56 (0.0465 in) is the closest, 0.0004 in smaller.