Basically confirming the bugs reported here: http://www.gaslampgames.com/forum/discussion/comment/849#Comment_849 and here: http://www.gaslampgames.com/forum/discussion/comment/395#Comment_395 I had a stack of steel ingots and used the autofill option to make bolts. I clicked autofill a few times thinking it would +1 the number of ingots in the tool, but it just ate them up.