Grind powder
Let charcoal and chitin fall into the mill's hopper and turn the crank. The powder lands on the tray.
Press it
Lay the powder and the other materials on the bench and pull the press lever. Bare, it makes clay bombs. See Bombs and blasting for what they do.
Casing mould
The bench makes a casing mould, and you set it on by hand. It opens the iron bombs and the blast rods.