Any tips for cutting cast iron pipe?

Old 01-29-07, 04:06 PM
martin_30's Avatar
Thread Starter
Join Date: Dec 2001
Location: Pennsylvania
Posts: 130
Upvotes: 0
Received 0 Upvotes on 0 Posts
Any tips for cutting cast iron pipe?

I have been at my 4" cast iron pipe with my sawzall and not making much progress. I'm using a Dewalt metal cutting blade. Is there something better that I should be using or does it just take a day to do it?
Old 01-29-07, 04:22 PM
wrmiii's Avatar
Join Date: Jun 2002
Location: West Texas
Posts: 245
Upvotes: 0
Received 0 Upvotes on 0 Posts
wrong blade

Go to a plumbing supply and pick up an eight inch carboloid blade. It takes about three minutes on four inch pipe
Good luck
Old 01-29-07, 04:26 PM
Ed Imeduc's Avatar
Join Date: Aug 2002
Location: Mountain Williams Missouri
Posts: 17,505
Upvotes: 0
Received 1 Upvote on 1 Post

Most rental stores have a chain cutter to use to cut the cast iron pipe
Old 01-29-07, 04:30 PM
Join Date: Jun 2005
Location: ontario canada
Posts: 348
Upvotes: 0
Received 0 Upvotes on 0 Posts
rent the soil pipe cutter or try a tungston blade in your sawzall...8 teeth per you hav found, higher number of teeth only polish cast
Old 01-29-07, 04:49 PM
Join Date: Mar 2006
Location: Wet side of Washington state.
Posts: 16,321
Received 39 Upvotes on 31 Posts
A thin, high-speed abrasive cutting disc works pretty well. If you don't mind destroying the pipe then a BIG hammer will also work.
Old 01-29-07, 10:28 PM
Join Date: Jun 2006
Location: United States
Posts: 2,296
Upvotes: 0
Received 31 Upvotes on 29 Posts
You must have a very dull blade or a DeWalt fake or your angle to the dangle is incorrect. I have cut a few and I have a cheap sawzall, however, one cut one blade. Good luck and have a nice day. Geo
Old 01-30-07, 08:17 AM
shacko's Avatar
Join Date: Aug 2005
Location: Baltimore County Maryland
Posts: 2,002
Upvotes: 0
Received 0 Upvotes on 0 Posts
Cast iron

Agree with furd. If you have 4 1/2in. grinder get a cut-off disc, that will only work if you can get all around the pipe. A standard sawzall blade thats not making any progress is usually a waste of time. You can also buy a blade thats designed for cast iron, [plumbing supply]. Lots of luck.

"If all else fails, read the directions"

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: