Could be worth a try from Ebay. Don't want to say yay or nay because if it does the job, it does the job. I'd expect the driver part to be up to the job, maybe the bits could fail if they are of an inferior quality taking the impact and torque forces.
My prybar for easing the calipers off is some cheap cast alloy thing from Poundland..it does the job
My prybar for easing the calipers off is some cheap cast alloy thing from Poundland..it does the job