input: [0] Propeller [1] 1 [2] 1 [3] Acts in cooperation with the motor to provide an air flow. This provides a cooling effect inside of the saw and also helps to keep sawdust/debris from entering the internal components of the saw. [4] Steel [5] Needed to withstand the high amount of RPM since it is attached to the generator. Fairly cheap. [7] Cheap method of mass production. [6] 
output: Casting (with Dies)