When making longitudinal cuts score with a knife and break along the score line.
Cutting hole in vinyl siding.
Place a strip of siding on the work table and align the place you plan to cut it with the edge of the table.
Cutting the vinyl siding is easy.
Clean the siding around the hole with vinyl siding cleaner or dish detergent and water then dry the siding.
The best way to cut vinyl siding circular saw.
Use tin snips or a rotary tool to make curved cuts.
Fit a circular saw with a fine toothed plywood cutting blade.
Cut a scrap piece of siding to a length that is several inches longer than the hole.
That said the hole is the least of your effort.
Https amzn to 2vnnzuy milwaukee hawg bits.
It should snap apart.
When we cut with a circular saw we often install the blade backwards to minimize ripping and tearing of the vinyl.
For the smoothest cuts put the blade in.
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This is a trick on how to cut vinyl siding the quickest and easiest way without breaking or chipping it.
A hole saw tin snips etc will slice right through it.