# 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" drill data

- Series: Fractional drill
- Decimal: 0.2344 in
- Metric: 5.95 mm (5.9531 mm exact)
- Nearest metric drill: 6.0 mm (+0.047 mm)
- Nearest letter drill: Letter A (0.2340 in)

## Nearest metric drills

| Metric drill | Inch | Difference |
|---|---|---|
| 5.9 mm | 0.2323 | −0.053 mm |
| 6.0 mm | 0.2362 | +0.047 mm |

## Nearby inch drills

| Drill | Series | Inch | mm |
|---|---|---|---|
| 7/32" | Fractional | 0.2188 | 5.56 |
| #1 | Number | 0.2280 | 5.79 |
| Letter A | Letter | 0.2340 | 5.94 |
| 15/64" | Fractional | 0.2344 | 5.95 |
| Letter B | Letter | 0.2380 | 6.05 |
| 1/4" | Fractional | 0.2500 | 6.35 |

## Clearance

| Fastener | Diameter | Clearance | Per side | ISO 273 |
|---|---|---|---|---|
| #10 screw | 0.1900" | 0.0444" | 0.0222" | – |
| #12 screw | 0.2160" | 0.0184" | 0.0092" | – |


## FAQ

**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).

Source page: https://machinistcharts.com/drill-size/15-64-inch/
Updated: 2026-10-06
Publisher: MachinistCharts (https://machinistcharts.com)