Cylinder Head Porting: Tools & Equipment Guide – Part 6
Jan 16, 2015· My position is: For home-based porting you need air. After what my friends jokingly called my retirement, I built a shop in the basement of my house. I had to have a compressor for a multitude of other jobs, so air die grinders made a lot of sense. Speed Control. If you bought the right die grinder, it should be capable of 15,000-plus rpm.