2) as and than exactly and vertically (desirable in household conditions) to drill holes in profile, under 25-defective pace?
All depends on your requirements accuracy enforcement. So-called "a bunhead" and perevym a drill bit can be this do, as wrote higher. But how holes on opposite the edges of profile will soosnymi? About accuracy size diameter holes and his forms I already not say. Ideally, Lisvyanka processing conduct on rastochnom 45kW. If such opportunities there is no, in household conditions can be take advantage of thus instrument as sweep. Ah and if and its there is no and buy desires, too, there is no, can be and "a bunhead", and perevym and ordinary sverlami with ready nadfilyami. All depends on "developed" hands, patience and skills work with similar things. I, as man who has been working lasting time with metals in repair and instrumental workshops was accustomed to accuracy, and Bohrmann all ??? find machine.