The mini sandblaster air eraser is a versatile instrument that can erase colour errors and act as an etching tool. It is used by hobbyists and manufacturers to clean jewellery and fine parts, remove discolouration, rust and corrosion, etch glass or cut monograms. It is used by lithographers to highlight half-tones and erase defects without marring the surface or leaving a smudge. It is used extensively by model railroaders for weathering railcars and accessories.