7/32" drill size
A 7/32 in drill is 0.2188 in (5.56 mm). It sits between 13/64 in and 15/64 in in the fractional series; the nearest metric drill is 5.6 mm.
7/32" 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 |
|---|---|---|---|---|
| 5.5 mm | 0.2165" | −0.056 mm | −0.0022" | Smaller |
| 5.6 mm | 0.2205" | +0.044 mm | +0.0017" | 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 7/32" 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 |
|---|---|---|---|
| 1/4-28 UNF | #3 | 67 % | Good in steel |
Clearance for screws and bolts
Bolts and screws a 7/32" 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 |
|---|---|---|---|---|
| #8 screw | 0.1640" | 0.0547" | 0.0274" | – |
| #10 screw | 0.1900" | 0.0287" | 0.0144" | – |
| M5 bolt | 5 mm | 0.56 mm | 0.28 mm | Normal fit (normal 5.5, loose 5.8 mm) |
| #12 screw | 0.2160" | 0.0028" | 0.0014" | – |
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 7/32 in drill?
A 7/32 in drill is 0.2188 in, which is 5.56 mm (5.5562 mm exactly).
What is the metric equivalent of a 7/32 in drill?
The nearest metric drill is 5.6 mm, 0.044 mm larger. The other close size is 5.5 mm.
What thread can I tap with a 7/32 in drill?
It leaves about 67 % thread in 1/4-28 UNF.
Which number or letter drill is closest to 7/32 in?
#2 (0.2210 in) is the closest, 0.0023 in larger.
What does a 7/32 in drill clear?
It clears a #12 screw with 0.0028" total clearance (0.0014" per side).