Yes, I know that, but normally the higher the power the higher the torque at the same speed. Also, the pulleys are as they are, the question was more of a theoretical one, changing the motor 1:1 without any other re-design, like changing the pulleys and so on. My current PBD 40 can handle the hole saws I have used so far, but the motor of the PBD 40 is stronger, since it is 800W, unlike the planned machine, which is only 500W. Both have about the same lowest and highest RPM.