Rust, scale and corrosion are tough to fully remove. Blasting high-speed media particles at the work piece is the best way to get into all the small niches in the metal to ensure complete removal. ? Speed Blaster"sTM gravity fed, safety vented reservoir tank eliminates tubes or siphon hoses that can easily clog. ? Speed Blaster runs continuously and virtually clog free with the correct media and moisture-free air. And you can use a variety of blast media that do not exceed 14 grit. ? The lightweight, long-lasting, comfortable design employs gravity to help force the blast media into a hardened steel mixing chamber. Compressed air then forces the particles through a top grade alumina ceramic nozzle at extraordinary velocity. ? Speed Blaster is self-contained and small for easy storage in a toolbox drawer. The next time you need to blast something, just connect compressed air and go.