17/32 in Drill Size
fractional drill
17/32″ 0.5312 in 13.49 mm
A 17/32 in drill is the standard tap drill for 5/8-11.
What a 17/32 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.
Other jobs for a 17/32 in
- Hard-material tap drill
- The size to use in stainless or tool steel for 9/16-24, where it leaves a shallower thread than the standard drill and cuts tapping torque.
- Form-tap hole
- The published roll-tap hole for 9/16-12, 9/16-18. 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: close fit for 1/2-13, close fit for 1/2-20, close fit for 1/2-28. See the clearance hole chart.
Drills either side
17/32 in drill: common questions
What size is a 17/32 in drill?
0.5312 inches, which is 13.49 mm. It is a fractional drill.
What can I tap with a 17/32 in drill?
2 threads: 5/8-11 at 79.4%, 9/16-24 at 57.8%.
Is a 17/32 in drill the standard tap drill for anything?
Yes, for 5/8-11 (79.4% thread). That is the size published tap and drill charts give.
Is a 17/32 in drill used for clearance holes?
Yes: close fit for 1/2-13, close fit for 1/2-20, close fit for 1/2-28. A clearance hole is not tapped; the bolt passes through it.
What drill is next to a 17/32 in?
Down: 13.4 mm at 0.5276 in. Up: 13.5 mm at 0.5315 in.