#1 Drill Size

A #1 number drill is 0.2280" (5.791 mm).

Closest fraction: 15/64 (0.2344", over by 0.0064").

Next size down / up

Drill	Inch	mm
#2	0.2210	5.613
A	0.2340	5.944

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