Not for slotting. This is not the right size for every biscuit. The thickness is almost correct for #20 and with a little fiddling I was able to use it for my project but the biscuit doesn't fit exactly and requires moving the board from side to side to the correct length to get it. It's close enough to work. This is a slot cutter, not a cutter. You won't get perfectly fitting cookie slots. If I used cookies regularly, I would replace them with a real cookie cutter.