drill pieces for grinding welds down, flappy wheel or stone grinder?

as title replaced parts of the floorpan in my car with panels from donor cars, from your experience what do you use to grind the welds down flush? im using a bosch drill as the angle grinder wont fit in the tight spaces, flappy wheel or a stone wheel (someone mentioned stone wheel)? ebay links below -

http://www.ebay.co.uk/itm/Silverlin...hash=item25bef64fb7:m:m0HUbwXIQdUS67m0UjQm5JQ

http://www.ebay.co.uk/itm/181103056910?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT

 

I'd suggest investing in a powerfile and or die grinder.

 

any links dude?

 

Defo powerfile. Such a useful tool

 

I use mine for everything. So much more control than a normal grinder

 

If i was to build another car i would buy a powerfile. Much safer to use than an angle grinder and it can get into all the places a grinder cant.

 

Do you have a compressor?
Air tools are cheaper to buy but more expensive to run as compressed air is comparatively expensive to produce .
Powerfile belts can be expensive and not last very long if you're not careful with them .
Carbide tools for die grinders aren't cheap and I've had burrs flick under my safety goggles into my eye once or twice .
One time needing several hospital visits

 

Powerfile but you can get in most places with a 4 inch grinder

36 or 80 grit discs