26 mm Drill Size

metric drill

26 mm 1.0236 in 26.00 mm

A 26 mm drill measures 1.0236 in. It taps 2 threads in this chart.

What a 26 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 26 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
1-1/8-7	54.6%	63/64″	75.8%
M27 x 1.5	51.3%	25.5 mm	77.0%

Other jobs for a 26 mm

Hard-material tap drill: The size to use in stainless or tool steel for M27 x 1.5, where it leaves a shallower thread than the standard drill and cuts tapping torque.
Form-tap hole: The published roll-tap hole for M27 x 2. A form tap displaces metal instead of cutting it, so it needs this larger hole.

Drills either side

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26 mm drill: common questions

What size is a 26 mm drill?

1.0236 inches, which is 26.00 mm. It is a metric drill.

What can I tap with a 26 mm drill?

2 threads: 1-1/8-7 at 54.6%, M27 x 1.5 at 51.3%.

What drill is next to a 26 mm?

Down: 1-1/64 in at 1.0156 in. Up: 1-1/32 in at 1.0312 in.