[KenWittlief]

Im not sure what you mean by it cuts off at 9V?!

do you mean as you speed up, once you get to 9V on the output the victor goes dead? the motor stops? the circuit breaker breaks the circuit?

or do you mean the output only goes up to 9V and no higher?

if the breaker is tripping then I would think your motor is binding - something in that part of the drivetrain is too tight and the motor is drawing enough current to trip the breaker.

are you powering both the drill and the chip when this happens?

are you using the drill motor gearhead that came with it? are you sure its in low gear and not in high?