VEVOR Flex Shaft Grinder 560W Rotary Tool with 1/4" 3-Jaw Chuck & Stepless Speed Foot Pedal Rotary Carver 500-25000RPM Hanging Grinding Machine 131PCS for Carving, Buffing,Drilling,Polishing

Funciona de maravilla y a un excelente precio

I've been using an old Harbor Freight Chicago Electric rototool that's about 15 years old and has seen some pretty heavy use. I'd already gone through one shaft and though the replacement was still going strong, I started smelling something electrical during use that wasn't normal. So, I decided to retire it and invest in a new one.I purchased the 560W version (the orange one), opting for the greater power and the metallic rotoshaft instead of the rubberized one I had before.In setting it up, I did notice that the cords were very short compared to the Chicago Electric one, coming in at about a foot shorter. It was too short to directly plug in and replace where I had my previous rototool. I had some spare 1 foot extension cords (the kind used to separate out power chargers on a single power strip), which closed the gap, so I made due. But if you have a distance to go for plugging in, this may not be long enough.Firing it up I was (and am) a bit concerned about the foot pedal. It's a lot bigger, but also a lot less sturdy than the Chicago Electric. But the CE version doesn't have a grounded plug to the new rototool. So I gave it a try (I can always swap out the cords if I get that motivated).The new rototool is actually quieter in operation, and somewhat smoother. I only ran it long enough to ensure that under usual conditions, there wasn't any stutter in the shaft. That's always an indication of insufficient lubrication (for those of you who may have experienced that with these) unless you're bending it at an extreme angle. Some white grease will fix that right up, but be sure to remove the old grease from the shaft cable as best you can before applying new grease.The one thing that made this four, instead of three, stars is that it's a 1/4" chuck. For a rototool, that's huge. It literally opens up all of the accessories that a small power drill has that come with 1/4" shafts. I had bought some roto sanding drums, but they were 1/4" and didn't fit my old one. Now I can use them with a lot more finesse than I could with my hand drill.I was also somewhat surprised by the quality of the accessories that came with it. Typically, they're garbage. These were at least a step up from that, and might actually be useful. And the chuck key having a screwdriver handle and t-bar to tighten the chuck beat the living crap out of the awkward T-bar chuck key I had for the CE roto.Now, one caveat: I haven't had a chance to use it. It's a 50Hz device, operating on 60 Hz. But the voltage is fine and all this means is probably more RPM's. Since you only ever run a rototool as fast as you need, rather than at max speed (unless you enjoy the wonders of friction fires), I don't expect it to be a problem. Once I use it, I will come back and edit the review if anything unusual goes wrong. Otherwise, I'll leave it as is. I will be greasing the cable before I do that, since I don't know how well it's greased (even if I didn't get any stutter in playing with it, and I DID bend it to an extreme degree to find out).So far so good. If it stays that way, that's the my word on it, and I think it's a decent tool for the job. If that changes, I'll let you know.

Works great

Update - after complaining I got a new unit, so I’m satisfied now and raising the ratingI bought the Vevor flex grinder and after an hour of work the shaft was released from its clamp so the power did not go to the end of the flex shaft. Ok, I thought whether just to return the unit, or ask for a new shaft that coast few $. I decided to contact Vevor and explain the situation and ask for new shaft. Their customer service reply fast (which was the only good thing) and they told me that they refer the request to the relevant technicians, which ask many dumb questions and each iteration took time until I could not return the items (which is just a short window of 3 weeks). I think that they just trying to stall time. I would say it is good tactic to cause customer disaffection and gain just few $. I will check with Amazon if this considered to be fraudulent activity. Vevor shame on you!!!

The versatility with the foot pedal, a 1/4" chuck, and having much more power makes a huge difference between this and a dremel type tool. The pedal's ability to start with rpms at a snail's pace makes up for being a bit too sensitive, and rpm can increase rapidly with little input. May be more convenient to use an adjustable knob set-up for long duration use. The chuck takes a lot more key rotation to change diameter than a normal drill, and can be frustrating as it can hang-up on the sharp corners of the handgrip, but can be remedied by filing a chamfer on corners (see pic). That and the fact that upon initial inspection I used the supplied allen wrench to remove flex cable from motor to find no lubrication on inner cable. I added wheel bearing grease to the cable and reinstalled without any issue as well as taking notes to order a new replacement cable in case of eventual failure. I wish I had a tool like this years ago but could only dream of it as the price of over $300 was prohibitive. I'm extremely pleased with it after the file mod and realize that it may have been a safety concern for not having the chamfer from the factory.