They set on the shaft at an angle (like this -/- ) and cut all the area from tilt to tilt.
The most you might get by with on a hand-held circular saw is stacking a couple blades (maybe 3?) with wide carbide teeth on narrow/thin discs. But it may kick like crazy.
The most you might get by with on a hand-held circular saw is stacking a couple blades (maybe 3?) with wide carbide teeth on narrow/thin discs. But it may kick like crazy.