Tap Drill Size Chart

35 mm Drill Size

metric drill

35 mm 1.378 in 35.00 mm

A 35 mm drill is the standard tap drill for M39 x 4.

What a 35 mm 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.

Threads a 35 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread % thread Chart drill Chart %
M39 x 4 chart drill 77.0% 35 mm 77.0%
1-1/2-6 56.3% 1-11/32″ 72.1%

Other jobs for a 35 mm

Form-tap hole
The published roll-tap hole for M36 x 2. A form tap displaces metal instead of cutting it, so it needs this larger hole.

Drills either side

All drill sizes → · Open this drill in the calculator →

35 mm drill: common questions

What size is a 35 mm drill?
1.378 inches, which is 35.00 mm. It is a metric drill.
What can I tap with a 35 mm drill?
2 threads: M39 x 4 at 77.0%, 1-1/2-6 at 56.3%.
Is a 35 mm drill the standard tap drill for anything?
Yes, for M39 x 4 (77.0% thread). That is the size published tap and drill charts give.
What drill is next to a 35 mm?
Down: 1-3/8 in at 1.375 in. Up: 1-25/64 in at 1.3906 in.