Hymair Air Eraser Kit (EW-178)

1.A versatile instrument for erasing color errors and acts as an etching tool Usde by hobbyist and manufacturer to clean jewelry and fine parts, to remove discoloration, rust and corrosion, to etch glass or cut monograms
2.Used by lithographers to highlight half-tones and erase defects without marring the surface or leaving a smudge
3.Used entensively by model railroaders for weathering railcars and accessories