Portable Pneumatic Grinder Mini Engraving Tool Set Handheld Polishing Machine 1/4in Air Grinding Machine

Info:
Features:
Made of fine quality material, wear-resistant for long using time.
Effortless pressing plate switch, convenient and comfortable to press.
With 3mm and 6mm chucks, the application scope is wider.
The grinding bit is easy to assemble and disassemble.
Compact size, easy to carry and long time operation is not tiring.