15/64" drill size
A 15/64 in drill is 0.2344 in (5.95 mm). It sits between 7/32 in and 1/4 in in the fractional series; the nearest metric drill is 6.0 mm.
15/64" 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 |
|---|---|---|---|---|
| 5.9 mm | 0.2323" | −0.053 mm | −0.0021" | Smaller |
| 6.0 mm | 0.2362" | +0.047 mm | +0.0018" | 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 15/64" drill can tap
No thread in the tap tables on this site falls between 55 and 85 % thread with this drill, so it is not a useful tap drill for them. Drills this size are mostly used for clearance, pilot and pin holes.
Clearance for screws and bolts
Bolts and screws a 15/64" hole clears, with the diametral clearance and the gap each side. Metric sizes are compared with ISO 273.
| Fastener | Diameter | Clearance | Per side | ISO 273, metric only |
|---|---|---|---|---|
| #10 screw | 0.1900" | 0.0444" | 0.0222" | – |
| #12 screw | 0.2160" | 0.0184" | 0.0092" | – |
Inch clearance is the drill size minus the basic major diameter. A drilled hole usually cuts slightly oversize.
Fractional drill index
Every size in the series, holes drawn to scale.
Common questions
What size is a 15/64 in drill?
A 15/64 in drill is 0.2344 in, which is 5.95 mm (5.9531 mm exactly).
What is the metric equivalent of a 15/64 in drill?
The nearest metric drill is 6.0 mm, 0.047 mm larger. The other close size is 5.9 mm.
Which number or letter drill is closest to 15/64 in?
Letter A (0.2340 in) is the closest, 0.0004 in smaller.
What does a 15/64 in drill clear?
It clears a #12 screw with 0.0184" total clearance (0.0092" per side).