The gear box has 3 settings,so im hoping to be able to play about until I find the one i like.I think the ratios are,450/1500/2000.I will be driving a small gear of 18 teeth and then on to a larger gear of 40 teeth which will drive 100mm blue tyers.Im hoping to end up with a medium speed but powerfull pusher.The dewalt motors i guess should be more powerfull looking at the torque specification of 56nm dewalt against about 20/30nm nutool?.. I havent got a clue i realy,i just ask you guys!