hand tapertool?

[3Feathers]

What kind of wood shafts do these work best on?The pencile sharpener type.

[Rob DiStefano]

any wood as long as the blades are sharp.

[Andy Cooper]

I've used a Tru-Center taper tool on POC, ash, maple, doug fir, and a pencil.

[Fletcher]

They work pretty good on POC and pine.  Fir and spruce come out pretty rough and they are slow on the hardwoods.  A disk sander and a guide is much better, but not nearly as compact.