Looking for FW Wheels.

So, as the title says, I'm looking for a set of wheels I can put upon my drill motors with a 3/8 UNF nut, or M10, if that's even the same. Either way...

I need the wheels to be at least 13.5 to 14 cm in diameter. If there's tire tread on it as well, then that's fine, if not, that's fine too, I can just cut up some cheap rubberised yoga mats.

If possible, please give me a nudge and I'll reply as soon as possible.

We use an 17mm hex adaptor to fit common RC wheels on battery drill based gearboxes. A custom nut and the original M5 left bolt is what gripts the wheel to the rest.

The adaptor is depending on the battery drill shaft length. For the Gimson GR02 with external bearing that's 22mm long. The Neptune uses about the same. The REX uses a 28mm long adaptor.