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.


I question that assumption. I don't believe slower RPM would give you
greater control. If you want the saw to cut slowly, push less. I would
immagine that really slow rpm would give you kickback rather than control.


Drills need variable RPM because they have variable diameter cutters
(various sized bits) as well as RPM-controlled self-feeding applications
(driving screws and auger bits come to mind).

Circular saws are (for the most part) fixed diameter and manually "fed".


-Steve



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