Mark,
Although drilling steel and iron may cause sparking, we are talking
aluminum here. With proper lube, including kerosine, I have never, in 30
years, seen a spark off of aluminum. Kerosine is TOTALLY inappropriate
for drilling other metals. Use any decent lube oil for steel or other
metals.
Scott
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Mark wrote:
> On 8/3/03, Scott Evans, Gen Mgr put forth:
>
>>Larry,
>>
>>What do you use as a drilling lubricant? I have always used kerosine for
>>drilling raw aluminum, but I'm not sure if this would attack the paint
>>on the panel.
>
>
> I can't speak for Larry, but since you posted to the list...
>
> I wouldn't use anything as flammable as kerosine. Drills often
> produce sparks. Any thin oil like CRC Cutting Oil should work fine,
> and is much safer to use. Flash rust is a non-issue with aluminum,
> and a lubricant that contains water will help keep the bit cool.
> Thats what I use. Imho, plain silicone and multipurpose sprays
> (like WD-40) are too "soft" and evaporate too quickly. Not that it's
> an issue with Stooge panels, but the use of silicone lubricants also
> requires extra prep if you are going to paint the metal later.
>
>
>
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>
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>
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>