Master Palm® Pneumatic.

Master Palm 1/4" and 1/8" palm mini straight die grinder 25000 rpm, is a revised pneumatic air die grinder design with a long life span and improved components for long operation usage. The die grinder is palm-size with mini housing and lightweight that you can carry in your pocket to work. Versatile palm mini straight die grinders can attach various types of abrasive accessory to complete your job with Master Palm? die grinder abrasive accessories to shape, grind, etch and de-burr hard metals, glass, tile, and masonry.