34.5 mm Drill Size

metric drill

34.5 mm 1.3583 in 34.50 mm

A 34.5 mm drill measures 1.3583 in. It taps 2 threads in this chart.

What a 34.5 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 34.5 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
1-1/2-6	65.4%	1-11/32″	72.1%
M36 x 2	57.7%	34 mm	77.0%

Other jobs for a 34.5 mm

Hard-material tap drill: The size to use in stainless or tool steel for M36 x 2, where it leaves a shallower thread than the standard drill and cuts tapping torque.
Form-tap hole: The published roll-tap hole for M36 x 3. A form tap displaces metal instead of cutting it, so it needs this larger hole.

Drills either side

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34.5 mm drill: common questions

What size is a 34.5 mm drill?

1.3583 inches, which is 34.50 mm. It is a metric drill.

What can I tap with a 34.5 mm drill?

2 threads: 1-1/2-6 at 65.4%, M36 x 2 at 57.7%.

What drill is next to a 34.5 mm?

Down: 1-11/32 in at 1.3438 in. Up: 1-23/64 in at 1.3594 in.