When using electric tools, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and personal injury, including the following:
//KEEP WORK AREA CLEAN
Cluttered areas and benches invite injuries
Don't wear loose clothing or jewelry. They can be caught in moving parts.
//USE SAFETY GLASSES
Also use face or dust mask if the cutting is dusty.
Use clamps or a vise to hold the work. It's safer than using your hands and it frees both hands to operate the tools.
//DON'T FORCE THE TOOL
It will do the job better and safer at the rate at which it was intended.
When servicing a tool, use only identical replacement parts.
When not in use, before servicing and when changing accessories such as blades, bits and cutters.
Keep proper footing and balance at all times.
//AVOID UNINTENTIONAL STARTING
Don't carry a plugged-in tool with only extension cords intended for outdoor use.
The biggest safety precaution you can probably use is to buy high quality tools and machines in order to avoid risks of any sort ie: