Metric Tap and Drill Bit Size Table

Tap	Metric Drill	US Drill
3mm x 0.5	2.5mm	-
4mm x 0.7	3.4mm	-
5mm x 0.8	4.3mm	-
6mm x 1.0	5.2mm	-
7mm x 1.0	6.1mm	15/64"
8mm x 1.25	6.9mm	17/64"
8mm x 1.0	7.1mm	-
10mm x 1.5	8.7mm	-
10mm x 1.25	8.9mm	11/32"
10mm x 1.0	9.1mm	-
12mm x 1.75	10.5mm	-
12mm x 1.5	10.7mm	27/64"
14mm x 2.0	12.2mm	-
14mm x 1.5	12.7mm	-
16mm x 2.0	14.2mm	35/64"
16mm x 1.5	14.7mm	-
Drill sizes are for 75% depth of thread.