15/32" drill size
A 15/32 in drill is 0.4688 in (11.91 mm). It sits between 29/64 in and 31/64 in in the fractional series; the nearest metric drill is 11.9 mm.
15/32" 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 |
|---|---|---|---|---|
| 11.9 mm | 0.4685" | −0.006 mm | −0.0002" | Smaller |
| 12.0 mm | 0.4724" | +0.094 mm | +0.0037" | 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 15/32" 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).
| Thread | Standard drill | Thread with this drill | Suits |
|---|---|---|---|
| M14 × 2 | 12 mm | 81 % | Soft metals, plastics |
Clearance for screws and bolts
Bolts and screws a 15/32" 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 |
|---|---|---|---|---|
| M10 bolt | 10 mm | 1.91 mm | 0.95 mm | Normal fit (normal 11, loose 12 mm) |
| 7/16" bolt | 0.4375" | 0.0312" | 0.0156" | – |
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 15/32 in drill?
A 15/32 in drill is 0.4688 in, which is 11.91 mm (11.9062 mm exactly).
What is the metric equivalent of a 15/32 in drill?
The nearest metric drill is 11.9 mm, 0.006 mm smaller. The other close size is 12.0 mm.
What thread can I tap with a 15/32 in drill?
It leaves about 81 % thread in M14 × 2.
What does a 15/32 in drill clear?
It clears a 7/16" bolt with 0.0312" total clearance (0.0156" per side).