1.3 mm Drill Size

metric drill

1.3 mm 0.0512 in 1.30 mm

A 1.3 mm drill measures 0.0512 in. It taps 2 threads in this chart.

What a 1.3 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 1.3 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
M1.6 x 0.35	66.0%	1.25 mm	77.0%
#0-80	54.2%	3/64″	80.7%

Drills either side

1.25 mm 0.0492 in · 1.25 mm Next size down
#55 0.052 in · 1.32 mm Next size up

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

1.3 mm drill: common questions

What size is a 1.3 mm drill?

0.0512 inches, which is 1.30 mm. It is a metric drill.

What can I tap with a 1.3 mm drill?

2 threads: M1.6 x 0.35 at 66.0%, #0-80 at 54.2%.

What drill is next to a 1.3 mm?

Down: 1.25 mm at 0.0492 in. Up: #55 at 0.052 in.