#57 Drill Size

number drill

#57 0.043 in 1.09 mm

A #57 drill measures 0.043 in. It taps 1 thread in this chart.

What a #57 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 #57 drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
M1.4 x 0.3	79.0%	1.1 mm	77.0%

Drills either side

#60 0.040 in · 1.02 mm Next size down
#56 0.0465 in · 1.18 mm Next size up

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

#57 drill: common questions

What size is a #57 drill?

0.043 inches, which is 1.09 mm. It is a number drill.

What can I tap with a #57 drill?

1 thread: M1.4 x 0.3 at 79.0%.

What drill is next to a #57?

Down: #60 at 0.040 in. Up: #56 at 0.0465 in.