Thanks for the advice guys. I've seen the bits with the 1/8in shanks and
my first thought was to not use them because they cost 2 or 3 times more
than the constant-diameter bits. And I'm thinking these bits break
easily and so replacement cost is something to keep in mind. Hence my
inquiry re collet or perhaps a chuck for bits under 1mm in diameter.
Steve K8JQ
On 2/3/2012 7:36 PM, John Anhalt wrote:
> All of my small carbide bits for PCB work have 1/8" shanks.
>
> John
> ----- Original Message -----
> From: Branko Badrljica
> To: Homebrew_PCBs@yahoogroups.com
> Sent: Friday, February 03, 2012 9:10 PM
> Subject: Re: [Homebrew_PCBs] Proxxon 38128 drill press -- collets for small bits?
>
>
>
> Dne 03. 02. 2012 23:02, pis(e Steve:
> >
> > Hi all,
> >
> > A couple of weeks ago I inquired about small drill presses for PCB work.
> > I'm kinda leaning toward the Proxxon 38128. Looks like the drill press
> > comes with six collets, the smallest of which accommodates 1/32in (about
> > 1mm) shank size.
> >
> > I'd like to be able to use a #76 bit and perhaps a #78 bit with this
> > drill press. Anyone know if collets are available for the 38128 for
> > those smaller size bits? If so, what is the source?
> >
>
> This is not AFAIK meant for PCB work. It's for general-purpose work.
>
> I use drill stand MB 140/S (NO 28606) + IB/E drill/grinder ( NO 28481).
>
> Drill stand has extra bolt for elimination of air gap and it's very precise.
> IB/E drill unit has high yuality bearings and can achieve high rpms,
> needed for PCB drilling with hard drill bits.
>
> Regards,
>
> Branko
>
> >
> > Thanks.
> >
> > Steve K8JQ
> >
> > --
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> >
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