#74 drill bit size

#74 drill = .0225 in = 0.57 mm. Closest metric drill: 1 mm.

Nearby drill sizes

Drill	Type	Inch	mm	Difference
#78	number	.0160 in	0.406	-6.5 thou
#77	number	.0180 in	0.457	-4.5 thou
#76	number	.0200 in	0.508	-2.5 thou
#75	number	.0210 in	0.533	-1.5 thou
#74	number	.0225 in	0.571	0.0 thou
#73	number	.0240 in	0.610	1.5 thou
#72	number	.0250 in	0.635	2.5 thou
#71	number	.0260 in	0.660	3.5 thou
#70	number	.0280 in	0.711	5.5 thou

1 thou = 0.001 in = 0.0254 mm. Drills a few thou apart are usually interchangeable for clearance holes, but not for tap drills or reamer pilots.