On Thu, 6 Feb 2020 11:50:33 -0800 (PST), fred wrote:

What is the power difference approximately between a 700w motor and a 550w induction motor in a pillar drill ?

Almost exactly equivalent to having a five legged horse and chopping a leg off.
But much depends on whether they are genuine UK/IEC horses fed on hay or chinese
ones fed on rice, fruit bats and snake remains

550W correctly reduced in speed via a pulley system and preferably a steel
geared gearbox will mean, at least with a correctly sharpened drill bit, you'll
easily be able to drill 1 inch diameter holes in mild steel plate. Restraining
the item you are drilling could be the bigger issue.

If it's a chinese horsepower without gearing then it could be 1/4" in plastic or
wood
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