International Taps torque comparison table and Gb screw holes diameter drill cross-references

Some customer ask me some question about how to get the right torque when tapping, now i give you the list to show the right torque when you tapping, please adjust the right torque when you tapping, then you will get good tapping result.

International Taps torque comparison table

Tap size mm	M1	M2	M3	M4	M5	M6	M8	M10	M12	M14	M16
Torque N.m	0.04	0.22	0.54	1.40	2.30	4.20	8.50	15.0	25.0	37.0	45.0
tap size Mm	M18	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45
Torque N.m	75.0	86.0	99.0	147	170	250	290	400	450	500	650
Size Mm	M48	M52	M56	M60	M64	M68	M72	M76	M80	-	-
Torque N.m	800	900	1200	1300	1600	1700	1900	2000	2000	-	-

I have one customer who open a new factory, he have brought our air tapping machine, but he do not konw drill what size holes before tapping, now i make the list for the customer's reference and also for many others who not know this information.
Gb screw holes diameter drill cross-references

Screw hole	M1	M2	M3	M4	M5	M6	M8	M10	M12	M14	M16
Drill Dia. mm	0.75	1.6	2.5	3.3	4.2	5	6.8	8.6	10.2	12	14
Screw hole	M18	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45
Drill Dia. mm	15.5	17.5	19.5	21	24	26.5	29.5	32	35	37.5	40.5
Screw hole	M48	M52	M56	M60	M64	M68	M72	M76	M80	-	-
Drill dia. mm	43	47	50.5	54.5	58	62	66	70	74	-	-