Here is a smart, wireless rotary pen that lets you polish and engrave like a pro. The VizTool Rotary Pen comes with app and WiFi connectivity. It comes with everything you need to grind, polish, drill, and engrave. It has a digital display, LED illumination, and lightweight design for easy handling. You can view all the action on your smartphone over WiFi.
This pen delivers 38,000 RPM performance. It can be used for sanding your 3D prints, carving egg shells, and polishing metals. Its 3 speed controller lets you switch mode fast. This gadget is completely wireless and lasts up to an hour on battery. You get multiple grinding heads to take on any tasks.
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