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OrrieG · 07-12-2012, 01:13 AM

These are the 3m purple ones I refered to, I get them equivlent to 80 grit. I use the 4", it is nice because it does not generate enough heat to warp the metal. Do wear eye and hand protection, it does shed pieces at 20K rpm!

http://www.shop3m.com/3m-clean-and-s...x1fnnpnl9.html

07-12-2012, 01:13 AM	#15
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: Removing Surface Rust These are the 3m purple ones I refered to, I get them equivlent to 80 grit. I use the 4", it is nice because it does not generate enough heat to warp the metal. Do wear eye and hand protection, it does shed pieces at 20K rpm! http://www.shop3m.com/3m-clean-and-s...x1fnnpnl9.html __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project