#18 Drill Size

A #18 number drill is 0.1695" (4.305 mm).

Closest fraction: 11/64 (0.1719", over by 0.0024").

Next size down / up

Drill	Inch	mm
#19	0.1660	4.216
11/64	0.1719	4.366

Printable PDF version - Drill Size Chart
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