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Just A Guy
Reviewed in the United States on February 14, 2025
An interesting little grinder/sander with dual direct-drive motors. Very little torque - as each motor only draws 133ma at 12.5V on slow speed at no load. So it's easy to bog down the motors, and the manual advises against doing that as it could damage the motors. The dual motors have 5mm spindles that stick out from the case a little over 16mm. The kit includes 3 arbors with a 10mm diameter that fit snuggly on the spindles (with 2 set-screws). 2 of the arbors are for the included hard grinding wheels (which they call sanding disks for some reason) and the soft abrasive wheels. The other arbor is for the 4" sanding disk (with hook and loop). There are 2 power sockets that accept the plug from the DC power supply - so you can only use one of the motors at a time (unless you get a second power supply elsewhere). That's not really a problem because you would not have them both running at the same time anyway. The enclosure is built like a tank, with 3mm thick metal all around. So it's heavy for its size and stable while running. It's easy to assemble the arbors/wheels, and easy to swap them for different wheels and purposes. The motors are very quiet. The manual it written in Chinglish, but you can make out what they're trying to say. They are promoting this as a sharpening tool, and it will definitely sharpen and polish small tools/blades - but only if you are good at free-hand sharpening or want to build your own tool rests/jigs. I think it has reasonable value for the price, as long as you're not expecting a lot of power. It seems most suitable for small hobby/craft projects that require a bigger sanding/grinding surface than you can get with a Dremel-type rotary tool. Since it's small, it would be great for a small workbench and detailed model building or crafting. It doesn't come with a buffing wheel, but it seems like you could add one pretty easily if that's your thing. I gave it 4 stars instead of 5 for the low torque, but I'm spoiled by having other sharpening tools like bench grinders, Tormek and Worksharp. This might be perfect for makers who don't need full-size grinding and sanding gear.
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