RE: Drill press milling vice
Drill presses aren't meant for milling. As someone mentioned, it's not rigid enough. Drill presses and their bearings are not meant for side loads. You can get away with light milling of wood and may aluminum, but it won't be precise, and you'll just put extraordinary strain on your drill press. And as also has been mentioned, those vises suck at precision.
If you really need some model size machining done, go with the sherlines for quality.