53HRA

7.2v is absolutely sufficient for RC work.

Intrigued though, what's the gyroscopic part? As in, what does it actually do?

Turn it left loosey or turn it righty tighty 🤣🤣🤣

The motion and speed is controlled with your wrist action. Its actually really good especially for RC work where you can really finely adjust the speed as opposed to a trigger. Being able to adjust the torque means less likely to strip anything (although i never fully tighten with power tools - many lessons learnt)

I see, that does sound interesting. Though i'm not sure about not being able to finely adjust torque via trigger, i think that depends on the trigger itself (whether or not it's soft etc). 

And yeah.. last turn always by hand. 

That gyroscopic thing does sound cool mind, gotta see if they have something with that mechanism at our hardware store. Though, not as cool as i thought it'd be when i heard "spinny thing" (Gyroscope). 😄