Couple of weeks ago a turning buddy showed up at my house with his Jet mini and a Bonnie Klein threading jig attached. We watched the video and make a couple of boxes using the cutter provided. Bill wondered if he could buy a smaller cutter to make small boxes. He called Bonnie and got a part number and mfg to order a small cutter. This is my first effort at small. I think we may be able to make one a little smaller but it won't be much smaller. The wood is Africian Blackwood. I have used an earplug for scale. It was hard getting inside to sand. My wife says "Don't you dare sell that one".