1.75 mm Drill Size

metric drill

1.75 mm 0.0689 in 1.75 mm

A 1.75 mm drill measures 0.0689 in. It taps 2 threads in this chart.

What a 1.75 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 1.75 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
#2-64	84.2%	#50	78.8%
#2-56	73.7%	#50	69.0%

Drills either side

#51 0.067 in · 1.7 mm Next size down
#50 0.070 in · 1.78 mm Next size up

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

1.75 mm drill: common questions

What size is a 1.75 mm drill?

0.0689 inches, which is 1.75 mm. It is a metric drill.

What can I tap with a 1.75 mm drill?

2 threads: #2-64 at 84.2%, #2-56 at 73.7%.

What drill is next to a 1.75 mm?

Down: #51 at 0.067 in. Up: #50 at 0.070 in.