Thread: drilling steel?
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BAH
 
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Default drilling steel?


"Dave" wrote in message
...
Hiya

I have just tried drilling some 3mm thick mild steel with a 13mm
hole......... hell of a lot of noise, loads of vibration and now the drill
seems to do anything but drill!

Ok, please stop laughing, I'm a beginer!!

The drill bit was a Piranna 'Bullet' that it said was for drilling metal,
but what I have only just realsied is that the max recomended rpm for 10mm
was about 1000. The drill was the cheapest Clarkes one speed drill (i'm on

a
budget and this might be a '1 of' project) so I guess this is much faster.

So my questions a
Is the drill running too fast? What speed should i drill 12mm holes at?

Does
anyone know where I can the cheapest drill to drill at the recommended
speed?

Thanks for any help given

Dave

May I answer two questions you haven't asked?
1. Use a lubricant, old engine oil will do, and it will save your drill
bit
2. Fix (clamp) the sheet of steel and be prepared for a 'snatch' when
you break through.
BAH