Will this work on a smitty built compressor?
Yes, it is suitable for 8mm threads, and most air chucks are suitable for it
Is the thread of the 20 tire hose (in one of these kits) the same as a Schrader valve,
Yes, it is suitable for 8mm threads, and most air chucks are suitable for it,Including bicycle tires, car tires, etc
Does this work with a presta valve?
Yes, it is suitable for 8mm threads, and most air chucks are suitable for it
I have12vdc tire inflator that screws onto my standard schrader valve on my tires. is this with clip adapter compatible?
Yes, it is suitable for 8mm threads, and most air chucks are suitable for it