What's the Pitch?
I SUPPOSE that when you start to read this article you will say to yourself, "Well, here's another article full of technical jargon that I could do without." You probably just want me to tell what I know about drilling and tapping and leave it at that. I can relate to that attitude, inasmuch as I think that about some of the technical articles I read. Nevertheless, I feel that if a person wants to develop a certain skill, he or she should know the basics first. Therefore we are going to talk about threads, tap drill sizes, number screws, clearance drills, etc. In case you are wondering who this guy is-here goes. I've been a machinist for about ten years and recently started teaching Machine Tool Technology at Hayward Regional Occupational Center, Hayward, California. I also teach part-time at Chabot College in Hayward. I've been a modeler for five years and have had great success in modeling, which is, I think, related to my experience as a machinist.

