A circular saw is a saw that rotates a circular, flat, sceraded blade to cut wood, plastic and metal. To use the saw all you need to do is secure the item you are cutting, hold the on button and pull down the handle.
Safety Steps
Before you can use the circular saw you must complete a three task.
First you must close the doors to mitigate the sound because the saw is very loud
Second make sure that everyone in the back room is wearing ear protection or covering their ears.
Everyone in a five foot radius must also be wearing eye protection
Make sure that you check the blade before you start to cut because not all blades are meant to cut metal. On the side of the blade near the blades brand should be writing saying what the blade can cut.