"David Billington" wrote in message
...
On 16/07/2019 05:46, Gunner Asch wrote:


While I love annular cutters for use in the lathe and BP the 3/4"
shank may be a problem for the OPs requirements so a simple hole saw
such as a Starrett bi-metal hole saw would be more than adequate.
Such as
https://www.amazon.com/HSS-BI-METAL-.../dp/B01DO4WNA8 .


Hand-held hole saws up to 4" worked well enough for me when I was
installing conduit into steel control boxes. Use a slow drill, like
500 RPM.