# 3/32" drill size

A 3/32 in drill is 0.0938 in (2.38 mm). It sits between 5/64 in and 7/64 in in the fractional series; the nearest metric drill is 2.4 mm.

## 3/32" drill data

- Series: Fractional drill
- Decimal: 0.0938 in
- Metric: 2.38 mm (2.3812 mm exact)
- Nearest metric drill: 2.4 mm (+0.019 mm)
- Nearest number drill: #42 (0.0935 in)

## Nearest metric drills

| Metric drill | Inch | Difference |
|---|---|---|
| 2.35 mm | 0.0925 | −0.031 mm |
| 2.4 mm | 0.0945 | +0.019 mm |

## Nearby inch drills

| Drill | Series | Inch | mm |
|---|---|---|---|
| 5/64" | Fractional | 0.0781 | 1.98 |
| #42 | Number | 0.0935 | 2.37 |
| 3/32" | Fractional | 0.0938 | 2.38 |
| #41 | Number | 0.0960 | 2.44 |
| 7/64" | Fractional | 0.1094 | 2.78 |
| Letter A | Letter | 0.2340 | 5.94 |

## Threads this drill can tap

| Thread | Standard drill | Thread % with this drill |
|---|---|---|
| #4-48 UNF | #42 | 67 |
| #4-40 UNC | #43 | 56 |

## Clearance

| Fastener | Diameter | Clearance | Per side | ISO 273 |
|---|---|---|---|---|
| #1 screw | 0.0730" | 0.0208" | 0.0104" | – |
| M2 bolt | 2 mm | 0.38 mm | 0.19 mm | Close fit (close 2.2, normal 2.4 mm) |
| #2 screw | 0.0860" | 0.0078" | 0.0039" | – |


## FAQ

**What size is a 3/32 in drill?**
A 3/32 in drill is 0.0938 in, which is 2.38 mm (2.3812 mm exactly).

**What is the metric equivalent of a 3/32 in drill?**
The nearest metric drill is 2.4 mm, 0.019 mm larger. The other close size is 2.35 mm.

**What thread can I tap with a 3/32 in drill?**
It leaves about 67 % thread in #4-48 UNF and 56 % in #4-40 UNC.

**Which number or letter drill is closest to 3/32 in?**
#42 (0.0935 in) is the closest, 0.0003 in smaller.

**What does a 3/32 in drill clear?**
It clears a #2 screw with 0.0078" total clearance (0.0039" per side).

Source page: https://machinistcharts.com/drill-size/3-32-inch/
Updated: 2026-10-06
Publisher: MachinistCharts (https://machinistcharts.com)