The power tools of today are nothing like the ones that your grandfather put on the pegboard next to his workbench. In fact, they are quite different. Modern technology has made amazing improvements to even the simplest features, such as automatic shut-off, better protection, and stronger materials, to name a few. But the owner's manual has become so important in the power tool business that it's worth more than gold.
Today's manuals not only have better pictures that show users what each part of the device should look like (and what to do if it doesn't) but also have clear instructions for how to keep each power tool safe and working well. No set of instructions is foolproof, especially if the person following them doesn't fully understand what they say. This is why a lot of manufacturers have set up seminars and classes to teach both companies and people how to use their products safely and effectively. Classes and seminars like these are often held regularly at home improvement stores in the area.
But a little common sense and knowledge never hurt anyone, so there are a few safety rules that everyone who uses power tools should follow. For instance, it's important to wear the right clothes, and you should never wear loose clothes that could get caught in a power tool. A hard hat, safety glasses, gloves, and the right shoes are all important pieces of safety gear. Using the right tool for the job, whether it's the right size or something else, and if necessary, the right type of extension cord (for indoors, outdoors, or the right length). The area where you work should be clean, clear of clutter, and well lit. Keep water and things that can catch fire away from all electric tools. Don't use power tools with cords that are frayed or broken. Damaged parts of a power tool, like saw blades and drill bits, can hurt the tool or the person using it. Unplug all electric power tools when you're done using them or when you want to switch to a different tool.
When it comes to keeping these power tools in good shape, common sense is again the most important thing. For example, putting the right guards on saw blades when they aren't being used is both a safety and a maintenance issue. Saw blades need to be sharp to work well, but they can also be very dangerous. Taking the right safety precautions will give you the best results in all areas, not just the project itself.
The U.S. government has a lot of publications that can help people learn more about how to use power tools. The U.S. Consumer Product Safety Commission has information about product recalls, and the Occupational Safety and Health Administration has a few publications about how to use power tools in both general industry and at home.