I do use clecos but the self tapping screws are more secure for temporary driving. These aren't regular sharp point sheet metal screws. The actually are dull on the end and drill their own hole.
The aluminium grinding disks I use are Tyrolit Secur Rondeller, made in Austria. Amazing things. DO NOT load up with aluminum. Flap disks load up long before they wear out and become useless. I get them from BayStateAbrasives.com. I use the 60 grit ones and just knock down the proud and do the rest with a vixen file.
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Kerry Pinkerton
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