On Feb 27, 1:57 pm, "Leon" wrote:
"Father Haskell" wrote in message

oups.com...

On Feb 27, 9:59 am, "yuyu" wrote:
I own a makita circular saw and it cuts very well and fast. was
however wondering if theres there a reason why circular saws are not
made with variable speed? It would be much more controllable i guess.

Vary speed by varying the blade or the feed rate. Twice as many teeth
=
effectively twice the speed. Same with pushing the saw through the
board half as fast.

A blade has an optimal cutting RPM. Feed in general rate does not change
that.

Right. But it does give you a surface twice as smooth with half the
resistance,
as if you had used a blade with twice as many teeth.