I'm ok for that. Picked up a decent drill press that looks like it was made for the job - in the '30s - off Ebay. With a vast quantity of tungsten bits. It may be old, but it's a delight to use and built like a tank. Managed to fit a spot to it too, so it can be used near anywhere.
I used to get through tungsten drill bits like nobodys business with fibreglass boards, not cheap either. I looked at a modern board recently, the via holes are minute, they only look a few thou, how do they do that?
Basically, you can't use tiny tungsten drills either hand held or in a press with 'slop' in the travel. They'll break. You need a good drill press and the work held firmly. With that, the bits last a long time even when drilling fibreglass. I've no experience of Dremel etc drill stands, but suspect they're not good enough.
In message , "Dave Plowman (News)" writes
I bought one of these, RS 606-664 a few years ago at an auction and his has proved invaluable, saved a lot on broken bits. Vacuum extraction and illumination too. Unfortunately it doesn't appear in there catalogue any more, but I have seen the occasional one on Ebay
they just seemed to wear out quickly, or maybe I drilled a lot more holes than I thought.
I still wanna know how they drill such small via holes.
In message , brass monkey writes
A very good and robust machine, not sure how I managed before getting it. I don't know, so probably wrong, but I would imagine very short bits so as not to have too much option for wobble, what they would be made from though, I again have no idea.
------ A post typical of Usenet really ! :-) ------
newer. Mine is badged Fortex Leicester. I could put a pic up somewhere - would be interested to know how old it is. It originally had a toggle on/off switch which I replaced with a rocker as it was broken.
In message , brass monkey writes
And a very high spindle speed apparently. Up to 300,000rpm.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.