I have been researching info on the pm 12x36 and from what I have found it appears to me that the pm 12x36 is capable of cutting 105 threads per inch.If any one is having a problem with figuring out which z gear you need to cut different tpi this will also be useful to you. I am going to attempt to paste it here in a pdf file format I don't know if it will work or not.View attachment All_Pitches.pdf View attachment Common_Pitches.pdf thanks..J.B