That was more for search-ability than correct nomenclature. Most people have heard of a tap and know what it does… I figured people new to cnc may not have heard of thread milling. (even Google thinks I always want to buy a new 3mm Treadmill… not!) 
I have a different profile tool from Maritool that I’m going to try some M6 holes tonight. I’m a bit skeptical with regard to the rigidity of the Nomad, hence the reason why I took it really slow with the M3, but we’ll see.
cheers !