13/32 in Drill Size
fractional drill
13/32″ 0.4062 in 10.32 mm
A 13/32 in drill measures 0.4062 in. It taps 2 threads in this chart.
What a 13/32 in drill taps
Every thread this drill cuts between 50% and 85% of thread, deepest first. Outside that band it is the wrong drill for the job, so nothing below that line is listed.
| Thread | % thread | Chart drill | Chart % |
|---|---|---|---|
| M12 x 1.75 | 73.9% | 10.2 mm | 79.2% |
| 7/16-28 | 67.5% | Y | 72.2% |
Other jobs for a 13/32 in
- Form-tap hole
- The published roll-tap hole for 7/16-14. A form tap displaces metal instead of cutting it, so it needs this larger hole.
- Clearance hole
- The through hole a bolt passes in, not a tapped hole: normal fit for 3/8-16, normal fit for 3/8-24, normal fit for 3/8-32. See the clearance hole chart.
Drills either side
13/32 in drill: common questions
What size is a 13/32 in drill?
0.4062 inches, which is 10.32 mm. It is a fractional drill.
What can I tap with a 13/32 in drill?
2 threads: M12 x 1.75 at 73.9%, 7/16-28 at 67.5%.
Is a 13/32 in drill used for clearance holes?
Yes: normal fit for 3/8-16, normal fit for 3/8-24, normal fit for 3/8-32. A clearance hole is not tapped; the bolt passes through it.
What drill is next to a 13/32 in?
Down: 10.3 mm at 0.4055 in. Up: 10.4 mm at 0.4094 in.