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Old 10-14-2011, 07:01 PM   #1
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Cutting Cast Iron


I am about to remodel my bathroom and I need to cut up the cast iron tub to get it out of the house. What sawzall blade do I need to get the job done?

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Old 10-14-2011, 07:07 PM   #2
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Cutting Cast Iron


Easiest way to break up a cast iron tub is with a sledge hammer - cast iron is brittle. (cover tub with a blanket first, it makes a huge mess.)

Edited to add: for less mess score lines into the tub with a grinder and then sledge it, it should snap along the lines.

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Old 10-14-2011, 07:10 PM   #3
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Cutting Cast Iron


---You will be cracking it apart with a sledge hammer--

Goggles and gloves--start on the inside and hit it in the same spot with steady moderate blows--soon enough a crack will start---follow the crack with more steady moderate blows and in no time the tub will be in manageable sized chunks.
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Old 10-15-2011, 05:45 PM   #4
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Cutting Cast Iron


I was hoping to avoid sending shock waves through the rest of the (old) house causing issues in other rooms. Is there a sawzall blade I can use to get the job done instead of the heavy handed approach?
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Old 10-15-2011, 05:59 PM   #5
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Cutting Cast Iron


Yes----Milwaukee makes a cast iron cutting blade---

Have you tried to pull it out in one piece? Using a helper I can usually get them out whole and down to the curb.

You are right to worry about 'collateral damage'--it is a very real possibility.
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Old 10-15-2011, 06:10 PM   #6
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Cutting Cast Iron


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Originally Posted by J&N View Post
I was hoping to avoid sending shock waves through the rest of the (old) house causing issues in other rooms. Is there a sawzall blade I can use to get the job done instead of the heavy handed approach?
Don't even think about it. You can't buy enough blabes and you will prolly burn up the sawzall
If you don't want to use a sledge hammer, try a grinder
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Old 10-15-2011, 08:20 PM   #7
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Cutting Cast Iron


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I was hoping to avoid sending shock waves through the rest of the (old) house causing issues in other rooms. Is there a sawzall blade I can use to get the job done instead of the heavy handed approach?
TheEPlumber is correct: you'll spend a fortune in blades, and probably kill your sawzall. Either take it out in one piece, or bust it up.
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Old 10-15-2011, 08:45 PM   #8
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Cutting Cast Iron


Tungsten sawzall bade 1 blade! cut that sucker in 4 sections.

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