I added the Porter-Cable 20vMAX Circular Saw to my collection of the 20V Lithium tools. It weighs 6.5 pounds without the battery and costs around 60 dollars, on Amazon.com, tool only. It has a 6-1/2-inch carbide tooth blade of the cordless circular saw delivers a 2-1/8′ cutting capacity.
The motor delivers 4000 RPM which has been adequate for all my projects so far. It has a beveling shoe that pivots up to 50 degrees. My friend Tim reached to move the power cord (habit) out of the way, cordless is the way to go, don’t have to get power to every spot you might want to cut something. The 20V Max Lithium batteries seem to last pretty well.
The your circular saw is designed for use with 6-1/2 inch (165 mm) diameter blades that have a 5/8 inch (15.9 mm) diameter bore. Blades must be rated for 6000 RPM operation (or higher). It does not support the use of any abrasive wheels. The blade will automatically stop once you let go of the trigger. That is a normal safety feature.
Porter-Cable was founded in 1906 by R.E. Porter, G.G. Porter, and F.E. Cable in Syracuse, New York. In 1914 they began to focus on Power Tools. In 2004 Stanley Black & Decker purchased Porter-Cable. Invented in the 18th century, for use in saw mills, is a A circular saw is a power-saw, using a toothed blade to cut different materials using a rotary motion spinning around an arbor.
I have enjoyed using this tool so far, long rip cuts on plywood is a snap. The first video here is of me ripping a piece of OSB (oriented strand board). Porter-Cable offers a 3 year warranty on this product. Highly recommended.