Originally Posted by PatrickSwe
Originally Posted by crash_ash
easy way to remember, if your tap says M12 x 1.75 for example subtract the 1.75 from the 12 to give the tap drill size, in this case it'd be 10.2mm
Correct!
ps,
Working as cnc operator in sweden, drills a lot of holes and thread´s them
ds.
Not always true for Imperial pitches though