Rotary Tool Cordless, Multi-Functional Tool 3.7V Multi Tool with Variable Speed Switch with 32PCS Accessories for Grinding Engraving Cleaning Polishing

First impressions were good, sturdy plastic construction, decent weight in the hand, very versatile with the included accessories, and if you change the collet you can use Dremel bits. Takes one hour fourty minutes to charge from flat, which gives you around 20 minutes of use at medium speed. However, it's not suitable for much more than light use. Under any kind of load, be it pressing too hard, or the use of larger bits, can lead to slowing down of the motor and the tool getting hot. I used the tool with a cupped wire brush to clean a brass nut and the tool quickly got too hot to handle. It then shutdown. The advertisement says that this tool now has improved cooling, but it could benefit from even more. The motor has very poor torque when used with the included polishing bit, so little that after a while the motor stops with even the lightest of pressure, this is also what happens when the battery is low and needs a charge. With careful use this can be a very versatile and handy tool to have but it's no replacement for a Dremel.

First few minutes were fine. After that the locking collar fell off, the “accessory” or bits work their way out the end of the tool, one even flew out and nearly hit me in the eye. Yes, I know I should wear eye protection, but I don’t expect the tool bits to fling out the end of the tool at that speed. If I were an inch closer there would be big problems. Can’t even find a way to contact the seller. Sure it charges fast and holds charge but at what cost when it’s so badly made? Such a shame. I’ll save up for a decent, safe one next time. Dangerous. Be careful.

I bought this to use to help finish my pla home printed models.I tried the sanding attachment but it kept on cutting off the second I applied the slightest pressure.Even when it did work, the finish was rubbish. All it did was make the plastic and not sand it. It says it was 15000 rpm but I doubt it. I know it isn't mega powerful, but I got it so I don't have to keep setting up the Dremel.I'm really disappointed but I suppose you get what you pay for applied in this instance.

Ideal for very light work where a Dremel is to clumsy at 3v is not very powerful but fine for delicate work as you can see I bought a 3 jaw chuck which you can now use a 1mm drill even .5mm for the price great. We'll worth the £20 the chuck I bought cost only £4.

Handy thing to have around obviously not the greatest but it does the job quicker, the only downside is if you apply too much pressure it cuts off and you have to click the button 3 times to get it to full speed again just makes sure you have the attachment tight in it otherwise it slides out

Later edit : it cannot be used while charging.Good tool for 3D prints, I have rated 4 stars only because starts in high speed then droops immediately in low speed, without pressing the button.

I was recommended this by someone who makes and sells resin pieces. It's small and lightweight. The battery lasts ages, I've only charged it once. There's loads of different bits that are really handy.

Great little tool.