I got this tool for christmas called quick and easy block tool ....its a great tool.....but I have a question. When it is telling you the block sizes....example 4 inch 6 inch 12 inch......is that the finished size of the block once its in a quilt? I need to make 12.5 inch blocks for a swap and I want to use the blocks from this tool but I just wanna make sure its not gonna turn out 12 inches unfinished.