#51 Drill Size

A #51 number drill is 0.0670" (1.702 mm).

Closest fraction: 1/16 (0.0625", under by 0.0045").

Next size down / up

Drill	Inch	mm
#52	0.0635	1.613
#50	0.0700	1.778

Printable PDF version - Drill Size Chart
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