I am planning on making a cross-drilled (xjinn sp?) water block out of copper for my future water-cooling system. I have recently purchased a box of titanium drill bits at a steal ($30). I am planning on using the drill press pictured below. Do these bits look like they will cut it (pun intended) or should i go with titanium bits from a company like dewalt that cost $25 for a lot fewer bits that might be higher quality. Thanks