Grinder For Body Work

[solitaire]

What is the best grinder/sander for grinding down welds for thin sheet metal autobody work? I was using a 4.5'' grinder with a flap wheel and it seemed like it was just gouging the metal too much.

 

[Red Green]

I use a 90* angle grinder with a 3M 50 grit roloc disk. I don't do much sheet metal work but it is nice for cleaning old welds on tubing.

 

[Monte]

...or your 4.5" grinder with a fibre disc

 

[sevt_chevelle]

This is what I use, IMO you have more control then with a larger 4.5 grinder, and to be honest with you I've never seen a 4.5 grinder being used in a body shop.

Just a cut off tool with a 3/16 thick grinding disc. Use this to knock the proud weld down, you only grind ON the weld.



Then to blend the weld I use a right angle die grinder with the Rolec attachment system with 50 grit. Depending on the area am working the disc are either 2 or 3 in in size.
The Rolec system is the trade name from 3M but many other companies have such a system. The metal disc shown in the picture is not part of the Rolec.