I have a customer who is wanting me to drill and tap some 1/2-13 holes in some AR 400. They are for a quick attach bucket for a loader. The 1/2-13 holes will be for securing the pins.
I have drilled AR400 before but never taped it. What you guys got for me? What kind of tap would work best, carbide? sprial flute? And help would be great!!
Thanks in advance Justin