Dentist bits are 1/16". PCB drill bit shanks are 1/8". So you have to
insert a 1/8" diameter shank into a 1/16" hole. Does the ER collet
accommodate this?
Jeff
_____
From:
Homebrew_PCBs@yahoogroups.com [mailto:
Homebrew_PCBs@yahoogroups.com]
On Behalf Of Boots Hughston
Sent: Tuesday, February 05, 2013 1:23 AM
To:
Homebrew_PCBs@yahoogroups.comSubject: Re: [Homebrew_PCBs] dental handpieces for copper clad drilling
You can use an ER collet reducer, I use one on my mill.
Boots-2b1
Sent from my iPhone
On Feb 4, 2013, at 9:08 PM, "Jeff Heiss"
jeff.heiss@...<mailto:jeff.heiss%40comcast.net> > wrote:
> Dental handpieces (aka dental drills) would be a great way to run small
> drills for the #60 - #80 range. They run at 350,000 RPM, are available on
> Ebay, and cost $16. The issue to solve is they take 1/16" bits and the
> shanks of our micro drills are 1/8". I have not been able to think of a
way
> to make an adapter. Has anyone used a dental handpiece for drilling
before?
> Are there any types of handpieces that use 1/8" bits?
>
> Jeff
>
> [Non-text portions of this message have been removed]
>
>
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]