On Fri, 29 Aug 2003 11:59:09 +0100, "Nick Finnigan"
wrote:

"Dave Plowman" wrote in message
...
In article ,
Dave wrote:
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.

IIRC, most single speed drills run at about 2400 off load - but you
should be able to slow it down quite a bit on load.

It doesn't slow down enough. I've spent a while blunting bits
with a single speed B and D before borrowing bu FiL's
Lidl special offer with a gearbox which was much easier.
Even a cheap Argos with a lockable trigger is better.

I've found that the judicious application of some off/on/off/on
trigger work can provide what amounts to a lower spindle speed even on
a cheap single-speed electric hand-drill.


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