I use Swann & Moton Scalpels a lot mostly number 3 & 4. The only problem is that they don't come with a cap, so here is one. The other nice thing is that it will stand straight with the cap instead of flat, this way it is easier to catch on a table. It fits and stays in place. [10/26/14 Update] I've tightened the mouth at the base and resized the top of the cap to be thicker.Just print it straight.