In article ,
IMM wrote:
Did you have to thread the steel bar? How much is the cheapest Bosch
angle drill? Where do you get, and how much is a speed controller? I
haven' seen one of those for years.

Maplin sell a drill speed controller kit for 19.99 - VE90. You'll also
need a box and input output cables/sockets etc. It works very well, but
may not reduce the speed of an angle grinder sufficiently for some
drilling applications.

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*How do you tell when you run out of invisible ink? *

Dave Plowman London SW 12
RIP Acorn