[sdiy] chassis punch

[Oren Leavitt]

Half inch (12+mm) square punches are common. You could do two 
side-by-side square punches to get your desired hole.

Or use a nibbler tool to size up from a smaller rect punch.

- Oren

On 4/18/25 10:55 AM, peter foti via Synth-diy wrote:
> The closest size that Greenlee makes is 11mm x 22mm, item # 60025
> 
> 
> On Fri, Apr 18, 2025, 9:29 AM mark verbos via Synth-diy <synth- 
> diy at synth-diy.org <mailto:synth-diy at synth-diy.org>> wrote:
> 
>     Hi all,
> 
>     I have a chassis punch, the kind where there’s a bolt that you crank
>     down on, that’s the size of an IEC power connector inlet that has
>     served me very well over the years. I would like to be able to
>     install the mini C8 type power connectors on some gear that I am
>     modifying to have a detachable power cable or internal power supply.
>     For that I need a hole that is 25mm x 12mm (maybe 12.5mm) rectangle.
>     I have been unsuccessful finding one. Sure, I could drill 4 tiny
>     holes and connect them with a Dremel, but the punch is sooooo much
>     nicer. Is there some secret source for these that I need to know
>     about? I believe someone on here recommended the ones I have now….
> 
>     Mark
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