# #68 drill size

A #68 drill is 0.0310 in (0.79 mm). It sits between #69 and #67 in the number series; the nearest metric drill is 0.8 mm.

## #68 drill data

- Series: Number drill
- Decimal: 0.0310 in
- Metric: 0.79 mm (0.7874 mm exact)
- Nearest metric drill: 0.8 mm (+0.013 mm)
- Nearest fractional: 1/32" (0.0312 in)

## Nearest metric drills

| Metric drill | Inch | Difference |
|---|---|---|
| 0.75 mm | 0.0295 | −0.037 mm |
| 0.8 mm | 0.0315 | +0.013 mm |

## Nearby inch drills

| Drill | Series | Inch | mm |
|---|---|---|---|
| 1/64" | Fractional | 0.0156 | 0.40 |
| #69 | Number | 0.0292 | 0.74 |
| #68 | Number | 0.0310 | 0.79 |
| 1/32" | Fractional | 0.0312 | 0.79 |
| #67 | Number | 0.0320 | 0.81 |
| Letter A | Letter | 0.2340 | 5.94 |


## FAQ

**What size is a #68 drill?**
A #68 drill is 0.0310 in, which is 0.79 mm (0.7874 mm exactly).

**What is the metric equivalent of a #68 drill?**
The nearest metric drill is 0.8 mm, 0.013 mm larger. The other close size is 0.75 mm.

**Which fractional drill is closest to #68?**
1/32 in (0.0312 in) is the closest, 0.0003 in larger.

Source page: https://machinistcharts.com/drill-size/number-68/
Updated: 2026-10-06
Publisher: MachinistCharts (https://machinistcharts.com)