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Can I use an angle grinder to cut bolts?

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Old 09-25-2005, 07:01 PM
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Can I use an angle grinder to cut bolts?

Bolts holding my cat converter to the exhaust pipes are frozen with rust, and I want to install a new cat. Can I use an angle grinder to cut through the bolts? Is it safe to do so?

Troy

Last edited by YotaJunky; 09-25-2005 at 07:19 PM.
Old 09-25-2005, 07:06 PM
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Yes........wear safety glasses.
Old 09-25-2005, 07:06 PM
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its fine, just gotta watch out for the sparks and hope you have enough room... a die grinder with a cutoff wheel would be more ideal, or a sawzall

Originally Posted by GRNTACO
Yes........wear safety glasses.
also, it gets quite loud, wera hearing protection as well as a heavy long sleeved shirt and pants to minimize spark burn

Last edited by jimabena74; 09-25-2005 at 07:07 PM.
Old 09-25-2005, 07:21 PM
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Originally Posted by jimabena74
its fine, just gotta watch out for the sparks and hope you have enough room... a die grinder with a cutoff wheel would be more ideal, or a sawzall


also, it gets quite loud, wera hearing protection as well as a heavy long sleeved shirt and pants to minimize spark burn

Check... safety glasses, a heavy long sleeved shirt & pants, and ear plugs. I'll let you guys know how it goes.

Troy
Old 09-25-2005, 07:35 PM
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Take lots of pictures if there is blood.
Old 09-25-2005, 08:01 PM
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if you cut a finger, make sure it's someone else's
Old 09-26-2005, 05:13 AM
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Originally Posted by GRNTACO
Take lots of pictures if there is blood.
I just sold my digital camera yesterday!!

Troy
Old 09-29-2005, 03:08 PM
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no blood in sight. The direct fit cat converter was an easy install after the bolts were cut and removed. The spending just doesn't seem to stop....

Troy
Old 09-30-2005, 07:44 PM
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It won't stop!
Old 10-01-2005, 08:01 AM
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i used my dewalt 4.5 angle grinder a few weeks ago to do the same thing, because my dewalt recip saw wouldnt work. i knicked the cat so i had to run a bead to seal it up, no big deal.
Old 10-01-2005, 10:20 AM
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For best results, be sure to use a cut-off wheel instead of a grinding wheel. The cutoff wheels are much thinner so you are removing less material. I get mine from Harbor Freight, they usually run 50-70 cents a piece. Get the size disc that fits your grinder. On my Makita 4.5" grinder, I had to get a thick flat washer to fill the hollow space in the grinding wheel mounting cup to allow using the flat discs.
Old 10-01-2005, 10:24 AM
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Originally Posted by 4Crawler
For best results, be sure to use a cut-off wheel instead of a grinding wheel. The cutoff wheels are much thinner so you are removing less material. I get mine from Harbor Freight, they usually run 50-70 cents a piece. Get the size disc that fits your grinder. On my Makita 4.5" grinder, I had to get a thick flat washer to fill the hollow space in the grinding wheel mounting cup to allow using the flat discs.
That's what I used, a cut-off wheel. It worked like a charm. Thanks for chiming in.

Troy
Old 10-01-2005, 10:29 AM
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Originally Posted by 4Crawler
For best results, be sure to use a cut-off wheel instead of a grinding wheel. The cutoff wheels are much thinner so you are removing less material. I get mine from Harbor Freight, they usually run 50-70 cents a piece. Get the size disc that fits your grinder. On my Makita 4.5" grinder, I had to get a thick flat washer to fill the hollow space in the grinding wheel mounting cup to allow using the flat discs.
Take the outer washer and flip it over, it's reversable to handle the thin disc.
Old 10-18-2005, 09:38 AM
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Originally Posted by BruceTS
Take the outer washer and flip it over, it's reversable to handle the thin disc.
On mine, there is no separate washer, the retaining nut and washer are all one piece. There is a cup shape to the wheel mount and if I pit a flat cutoff wheel instead of a cupped grinding wheel, the center of the disc is pushed into the cut and the disc breaks. There may have been some adapter for that in the box, but if so, I missed it before tossing it, oh well.
Old 10-18-2005, 09:53 AM
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You must have the older design grinder then, the newer washer design allows the outer nut to be flipped over to run the thinner disc and they changed the cupped inner washer to a shouldered flat one.

Parts breakdown PDF file

Last edited by BruceTS; 10-18-2005 at 10:01 AM.
Old 10-18-2005, 09:59 AM
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Looks like there is an extra washer on that model then. Mine just has the outer nut or if there was a washer, it was in the box and I missed it.
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