This arrow rest by Avalon is easy to micro adjust with the thumb screws, but you can properly tighten it down with an allen wrench as well, making it the best of both worlds. The rest is adjustable in height, width and angle of the blade. Attaching the rest to the bow is done with a sturdy bolt with a brass ring in between to keep it from vibrating loose.
The rest gets shipped with a wrench, some allen keys and spare blades.