I have one of these, and alongside my electric pencil sharpener, this is the best hand crank that I have found.
A hefty, desktop sharpener is sturdy and you really feel like you have a quality piece of equipment in your studio. Replacement blades can be bought, ensuring this is a once only purchase.
Taking pencils from 7-11.6mm diameter with an adjustable pencil point from 0.5-4.8mm. Comes complete with desk clamp.