Swhmc DC Motor 3V-12V 280 Micro Motor 42 x 24 mm for RC Boat Model Toys DIY (Pack of 5)

Works as advertised. Small and powerful. Predrilled and threaded holes for screws is nice.

For model train. Works fine

Two motors didn't work but other than that not bad for cheap ones

These looked good, but I had to return them because they were too small and didn't fit for what I needed after all. Seemed like nice motors.

The seller said these motors draw 0.07 amps. When the arrived I tested it with a 12V power supply and a Fluke 87 multi meter. It draws 0.50 A for about one second on startup and 0.25 A while running (nothing attached to the shaft). When I tried limiting the current to 0.10 A, the motor would not spin. I tried limiting the current to 0.20 A and it would not run until I got it started manually by spinning the shaft with my fingers. So at least in my case, the seller's statement was not true, and if my power supply could only output 0.07 amps the motor would appear to be non-functional (since after all, a DC motor will happily draw current without spinning). The starting current draw will be even higher than 0.50 A if you are using the motor do actually do some work, instead of just spinning the shaft in the air. Make sure your power supply has enough current capability. Most batteries will have enough current capability, but they will drain at least four times faster than the seller would have you expect. In case it is useful to your application, I measured the cylindrical body of the motor is 23.8mm diameter, 30.6mm long. The shaft sticks out 10mm from the front bearing. So the seller means that the shaft is 42mm long including the parts of the shaft which are inside the motor. Most people would refer to the "overall length" as 42mm, and the "shaft length" as 10mm. Lastly, these things are noisy. They are considerably louder than a person talking, but not painfully loud. I give the product 4 stars because the motors are functional and the price is excellent. I took off one star because I am worried someone will buy it on the basis of the seller's incorrect current rating. Hope this helps.