#28 Drill Size

A #28 number drill is 0.1405" (3.569 mm).

Closest fraction: 9/64 (0.1406", over by 0.0001").

Next size down / up

Drill	Inch	mm
3.5 mm	0.1378	3.500
9/64	0.1406	3.572

Printable PDF version - Drill Size Chart
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