GALAX PRO Mini Circular Saw, DC20V 4-1/2" Cordless Circular Saw with 2.0Ah battery, Laser Guide, Rip Guide, 2 Pcs Blades(24T+ 60T), 3400RPM, Max Cutting Depth 1-11/16"(90°), 1-1/8"(45°)

VIVOHOME 7-1/4-Inch Circular Saw Kit, 20V Brushless 4000 RPM, Max Cutting Depth 2-12/25"(90°), 1-5/8"(45°), Cordless Saw with a 4.0-Ah Battery, Fast Charger, and Carrying Bag

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How To Use a Circular Saw: A Complete Guide