Hi everyone!
I'm slowly kitting myself out with decent tools and equipment, and I'm in need of a reliable method to drill 0.8mm holes in homemade PCBs.
I'm looking at the Proxxon TBM 220 Bench Press drill (website:
http://www.brimarc.com/products/Proxxon-TBM-220-Bench-Drill-725383.htm) with a 0.5 - 6mm chuck.
I was trying to use a small DC motor with collet attachment that I got for a couple of pounds from eBay, but (no surprise, really), the rotational accuracy at the end of the drill bit is not nearly good enough for holes that small.
Has anyone used this tool or similar, and do you think it is likely to be significantly better than getting a Proxxon handheld rotary tool and decent Proxxon drill stand? I know the Dremel ones are meant to be pretty poor, though. I was just wondering whether, as well as being significantly cheaper, the handheld drill might prove more useful for other jobs too. But I really don't want to compromise on being able to do very accurate, small holes.
I presume that as the TBM 220 is a bench press, it will be happy taking carbide drill bits, but do you think its top speed of 8,500 rpm would be sufficient?
Anyway, any thoughts or opinions very welcome! Thanks, guys. Don't know what I'd do without this forum - I'd be too worried about buying the wrong things all the time!