This is an excellent sharpener for Arbortech's Tungsten Teeth Blades, Shaping Ceramic Sticks, etc. It is not just for your woodcarving tools but for your kitchen knives and scissors also. Keep one in your tool box and fishing kit too!
When sharpening the Tungsten Teeth simply use in a filing motion straight across the teeth. The teeth are hollow-ground and after repeated sharpenings will loose their fine edge. This will be evident in the smoothness of your cuts and the teeth should be replaced.
For the average hobbyist, the teeth should last you a few years at least.