Review on Sandflex Sanding Block 3 Pack by Chris Tisdale

Went into my garage a few days ago the day after a heavy rainstorm when it was about 10 degrees Fahrenheit. My cast iron sawmill literally turned into a dust bucket. From zero rust to complete rust in a few days! I got out the Sandflex I bought a few weeks ago, let some WD-40 sit for 20 minutes and started cleaning. While Fine was working, removing the rust was too much of a hassle. Switched to medium and it got a lot better.