Hole...water pipe cap..... PIPE BOMB.... Oh my God!!! a terrorist!!!!!!



"TC" wrote in message
ps.com...
This may be a dumb question, but is it easy to drill through iron?

I need to drill 2 x 3/16-inch holes through the cast iron cap of a 1-
inch black pipe. I've never drilled through anything tougher than
wood, so I don't know if that's a big deal or not. What kind of drill
bits should I buy? What drill speed should I use? Should I use a
lubricant? How many holes can I make with each bit? (I need a total of
8.) Since the surface isn't flat, do I have to worry about the bit
bending away from my target spot? How long can I expect each hole to
take?

Browsing this group, I've seen mention of laser and EDM. Should I
consider finding a shop which can use one of those techniques for me?

-TC