Will hit the mines and increase the rate of wagons creating. Can also give rotational impulse to the cogwheels. Can attach hammer upgrades to increase hit rate.

Level Cost Effect
1 +1 Hammer
2 +1 Hammer
3 +1 Hammer
4 +1 Hammer
5 +1 Hammer
6 +1 Hammer
7 +1 Hammer
8 +1 Hammer
9 +1 Hammer
10 +1 Hammer

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