Hi folks. Looking for any info on tapping h13. jave 60 pieces with 2 1/2-13 holes and 2 m10x1.5holes 1.25" deep. Cut tap or form? Coolant or oil? Have milling to do also and will be done on cnc. Coolant is probably what will be used. Thoughts on that? The Machine does have a peck tap cycle. Any Thoughts on that? Always had good results with ghuring. Parts are supplied and not made in house. thanx folks. Happy holidays.