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.

--
*Starfishes have no brains *

Dave Plowman London SW 12
RIP Acorn