Drilling Cast Iron
Drilling Cast Iron
(OP)
I have a non-structural piece of cast iron about 1" thick that needs a hole drilled through it. Are there any special requirements for drilling through cast iron, and would a normal steel drill bit work?






RE: Drilling Cast Iron
Pylko,
It often helps to prevent cracking after drilling by chamfering the ID of the hole at the top and bottom with a 45-degree chamfering bit. This is especially helpful under loaded washers and nuts.
David