[sdiy] Metal Punch for Synth Panels

[Bob Weigel]

Yup parts express and other places sell those and they are quite nice. 
Use a cheap drill to start holes though if convenient because the tips 
wear out and then the things will be less useful and they're like 30 
dollar bits or something.  But the stepping tends to take the heat off 
any particular edge and they are smoother/last longer than a 
conventional bit.  -Bob

The Peasant wrote:

>If you have to use a drill, a "step" type bit works well for aluminum holes, it 
>makes them quite round and is self-deburring. 
>
>Take care,
>Doug
>______________________
>The Electronic Peasant
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>www.electronicpeasant.com
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>Quoting Ray Wilson <raywilson at comcast.net>:
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>>Where can I buy some kind of punch that can make up to 3/8" holes in 1/16" 
>>soft aluminum? I am totally sick of drilling holes in the stuff that never 
>>drill properly and are never round. Also they tend to leave burrs that I 
>>have to ream off of the material. Is it me am I doing something wrong? Are 
>>other people actually drilling round holes without burrs easily? If there's 
>>a DRILL seargent out there, I could use some help and I mean a HOLE lot of 
>>help.
>>
>>Thanks
>>
>>Ray 
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