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Removing the carrier arm allowed for a comparison of the lower and upper planetary gears, which revealed them to be identical, having the same number of teeth and being made of the same plastic material. This was in contrast to the higher torque screwdriver we observed the video deconstruction of in class, which had stronger, metal gears in the upper gear set in order to better withstand the higher torque that is transmitted near the output of the screwdriver. From this design choice alone we can see the difference in material considerations necessary between weak and power tools. The sun gear attached to the motor was also the same size as the carrier sun gear, with the same number of teeth. The motor sun gear appeared to be made of a brown metal of different composition than that used in the carrier. Though I could not find the material used for this part in the part's specifications, I would guess that this part is of a weaker material the material is likely stronger than the carrier arm material, as though it is transmitting experiences a lower torque, it goes through far more cycles in its lifetime, and would likely wear out sooner otherwise.
After the initial disassembly, I could begin to start formulating what would be necessary for kinematic analysis. It was clear from observing the motor speed that it far exceeded the speed at the chuck during operation, indicating the tool's intended purpose is to transfer a high input angular velocity to a high output torque.