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Indeed, circular saws are the most common home power tool after drills. Battery-powered saws offer go-anywhere convenience, but plug-ins are far more capable.
Black & Decker, Bosch, Craftsman (Sears), DeWalt, Hitachi, Makita, Milwaukee, Ridgid, Ryobi, and Skil brands account for most of the circular saws sold.
Corded models. These offer up to seven times the speed and power of cordless saws and run on an electric motor that can range from 10 to 15 amps. The higher the amps, the more power you can expect. Most models have the motor perpendicular to the blade. Price range: $30 to $175.
High-torque worm/hypoid-geared models …