The first one is a ball link reamer tool. As long as it is the same size as the balls on the swash and servos and such, you can put that tool into the plastic end, turn it, and it will loosen up the grip it has on the ball. Speaking of plastic end, the second black tool is to install those plastic ends onto the linkage rods. Just hold the rod with pliers and use that tool to turn it. Keeps from making your fingers sore.