The best drill bit to use for cast iron is a cobalt bit with a 135-degree point angle. The angle is sharper than that on a conventional bit, making drilling faster and more accurate. Cobalt bits are brass-colored. As an alternative, you can also use a gold-colored titanium nitride bit.
Can you use a hole saw on cast iron?
Cast iron is brittle, but as far as metals go, it isn't very hard -- so drilling a hole into it isn't as difficult as you might expect. ... Any bit intended for drilling through metal will drill through cast iron.
How do you cut a cast iron sewer line?
https://www.youtube.com/watch?v=ACU1KeVfJa0
Can you drill cast iron with a hole saw?
Cast iron is brittle, but as far as metals go, it isn't very hard -- so drilling a hole into it isn't as difficult as you might expect. ... Any bit intended for drilling through metal will drill through cast iron. The key is to take your time to avoid overheating the bit and wearing it out.
Can I cut a hole in a cast iron pipe?
It's not difficult to drill a hole in a cast iron pipe. This sort of metal is the most dense and hardest metal available for use in modern-day homes. ... You can't drill through a cast iron pipe with one drill bit. You'll need to use an array of drill bits to get the desired size of hole that you want.
Can u drill and tap cast iron?
Occasional hard spots in the cast iron can break the tip of a drill bit if you apply excessive pressure on the tip of the bit. ... Tapping a hole drilled in cast iron requires care to avoid breaking taps in the hole when you encounter a hard spot.
What kind of Tap do you use for cast iron?
Use either a taper or spiral point tap and finish it off with a bottoming tap if it's a blind hole . Blow the chips out of the hole before you run that bottoming tap through it else you'll have the broken tap in the hole and that gets into another subject --How to remove a broken tap .Mar 8, 2011