#27 Drill Size

A #27 number drill is 0.1440" (3.658 mm).

Closest fraction: 9/64 (0.1406", under by 0.0034").

Next size down / up

Drill	Inch	mm
9/64	0.1406	3.572
#26	0.1470	3.734

Printable PDF version - Drill Size Chart
Clean letter-size sheet for the toolbox or shop wall. Instant download, $3.49.