TIP #3: Using the saw's built-in laser line, you can quickly cut plywood and other panels in half with surprising accuracy using only two pencil marks as a guide. With a tape measure, lay out and strike a pencil mark on the opposite edges of the panel you wish to cut. For example, say you wish to cut a 3 ft. by 4 ft. wide piece from a sheet of 4 x 8 particleboard. Measuring from the same end of the sheet, put marks at 3 ft. on the front and back long-edge of the plywood (see photo at left)...

 

Powertool Tips & Tricks

...Now line up your sawblade with the mark on one edge of your panel. Turn on the laser line and align the saw (rotating it slightly) so that the laser lines up with the mark on the opposite edge of the sheet. Power on the saw and carefully cut across the panel while keeping the laser line aligned with the mark the entire time.