Remember that users have to keep in mind this safety rules during using tools:

• Do not operate the tools in explosive atmospheres, near flammable liquids, gases, or dust. Power tools create sparks, which may ignite the dust or fumes.
• Keep bystanders, children, and visitors away then using a tool. Do not allow them to come into contact of any tool or extension cord. Distractions can cause you to lose the control.
• Do not expose tools to rain or or used them in wet locations, or if they are wet.
• Prevent body contact with grounded surfaces such as pipes, radiators, rebar, refrigerators enclosures. When operating cordless tools, use only the battery specified by the user manual or manufacturer, and recharge it only with the specified charger.
• Do not operate a tool while you are tired or under influence of alcoholic beverages, drugs or medications. be alert and focus on what you are doing. One second of distraction can cause serious injury.
• Do not use excessive force. Use the tool at the rate for which it is intended, and it will do the job better and safer.
• Secure the piece of work. Use clamps or a vise to hold down the piece of work while perform the application. It is safer than using your hand, and frees both your hands to operate the tool.
• Do not overreach. Keep proper footing and balance at all times and avoid to use power tools above the level of your shoulders.
• Use the right tool. Do not use a tool for the purpose no intended, or force a small tool or accessory to do a job of a heavier duty tool.
• Use only recommended accessories by the tool manufacturer and also that complies or match with tool capacity.

Accessories that exceeds tool capacity are extremely dangerous and create a high risk of injury and / or damage on your tool