5/32 inch in mm and decimal

5/32 in = 0.15625 in = 3.969 mm. Closest metric drill: 4 mm.

Nearby drill sizes

Drill	Type	Inch	mm	Difference
#26	number	.1470 in	3.734	-9.3 thou
#25	number	.1495 in	3.797	-6.8 thou
#24	number	.1520 in	3.861	-4.3 thou
#23	number	.1540 in	3.912	-2.3 thou
5/32	fraction	.1563 in	3.969	0.0 thou
#22	number	.1570 in	3.988	0.8 thou
#21	number	.1590 in	4.039	2.8 thou
#20	number	.1610 in	4.089	4.8 thou
#19	number	.1660 in	4.216	9.8 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.