Grinding and Honing Stones

[silentdub]

I have an exhaust manifold that I need to hone out and clean up a little bit. It is cast iron and some of the welds needs to be cleaned up on the inside of the some of the ports.

What type/brand of grinding stones should I use? What holds up longer than generic dremel stuff?

I need to gasket match the ports and clean up a factory weld that is impeding some flow.

 

[theknurl]

1/4" die grinder and a 3/8" rounded tree double cut carbide burr......stones are a waste of time/money

wear a respirator

or you'll be sicker than a dog for days.....

ask me how I know

 

[bareass172]

I bought these burrs from Astro and I've been very pleased with them so far. Of the set one did break on it's first use, but an email to Astro had a replacement in the mail immediately.

http://www.astrotools.com/default.aspx?toolsnum=2181&

 

[Steinmetz]

1/4" die grinder and a 3/8" rounded tree double cut carbide burr......stones are a waste of time/money

wear a respirator

or you'll be sicker than a dog for days.....

ask me how I know

Second on the carbide burr. The abrasive dust is very irritating when inhaled.

 

[silentdub]

Thank you!

I will look in to them. I don't do this work often but don't want to just throw money out the window.