[ARC5] Chassis nibbler

[WA5CAB--- via ARC5]

Use a hole saw in a drill press or vertical mill.  Much easier on the 
hands, quicker, the hole will be round, etc.

But to actually answer your question, I don't know.  Never tried it.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 02/02/2015 18:10:03 PM Central Standard Time, 
spr at earthlink.net writes: 
> To guard against crack propagation, pre-drill holes (maybe 5/32") at the 
> corners of the intended hole and then nibbble towards them. Any crack 
> should stop at the hole.
> 
> Sharp corners cause stress concentrations.
> 
> /scott
> 
> On 2/2/15 1:58 PM, Bill Cromwell wrote:
> >On 02/02/2015 04:50 PM, AKLDGUY . wrote:
> >>Thanks Dennis but the query related specifically to DIE-CAST aluminium.
> >>I've used my nibbler on countless ordinary aluminium sheet but never
> >>on DC.
> >>
> >>73 de Neil ZL1ANM
> >>
> >>On Tue, Feb 3, 2015 at 10:45 AM, Dennis Monticelli <
> >>dennis.monticelli at gmail.com> wrote:
> >>
> >>
> >Hi Neil,
> >
> >I was worried about breaking the tool or my hand with that die cast
> >aluminium. I resorted to small files (or larger ones for roughing out).
> >The files I had are called "jeweler's files" and now I can't find mine.
> >Let us know if you have any success doing it with the nibbler.
> >
> >73,
> >
> >Bill  KU8H

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480