Hiwonder 20KG High Torque Digital Servo Motor Full Metal Gear, Waterproof Servp for RC Mode DIY,Control Angle 270°

Works great

This has some serious power... if you need a need for a standard size servo to deliver over a ft lb (by spec, nearly 1.5 ft lb) of force, you won't find many options in this price range. A strong metal servo horn is included (as well as some standard plastic accessories). The 270 degree option is great to have for certain applications. I'm not sure if the 180 degree option is the same, but there are no end points on the 270 degree version. If you stop power and decide to allow this servo to freewheel in your application, it can spin 360 degrees. This servo is probably too powerful for plastic end points, so your design will have to include stop points if needed. The servo is responsive and accurate with my tester. There is very little play in the output shaft, and no discernible runout when the servo horn is mounted correction. This feels better built than servos made by the big named companies. Only time will tell if it holds up to the stress, and I will update this review if it doesn't.

Installed on a custom crawler R/C build and is working fabulous. The response and timing are great after taking the truck out three times there has been no faults or delays. This is something to defiantly consider for my next R/C build.

Really nice servo for a smaller or lighter car -- it's strong enough for most things -- and it has metal gears inside so hopefully no stripping out. Assortment of attachments/horns in plastic as well as a nice metal one.

I put this on a 1:10 scale truck and it works great. My steering and handling are very good and the servo itself seems well made. I haven't had any problems with my steering being less responsive or the servo getting hot. It was easy to install and comparable to what would be in a hobby store.