Mini Circular Saw, 4.8 Amp 4-1/2 Inch Compact Circular Saw, 3700RPM, Electric Circular Saws with Laser Cutting Guide, Perfect for Wood, Tile and Plastic Cuts - Amazon.com
20V Brushless Cordless 5-3/8 in. Metal Cutting Circular Saw - Tool Only
TrackSawGuide™ - Circular Saw Guide System - Milescraft
Skilsaw Magnesium Sawsquatch Worm Drive Circular Saw - 10 1/4in. 15 Amp, with Electric Brake, Model Number SPT70WM-22 - Walmart.com