An impact wrench is a power tool used to loose and tighten nuts and bolts. There are basically two types of impact wrenches based on the source of power that generates the torque.
Air-powered impact wrenches and electric impact wrenches. Electric impact wrenches can further be divided into two types; corded and cordless electric impact wrenches.
A corded electric impact wrench requires the tool to be plugged to an electric power source before it can be used. A cordless electric impact wrench is powered by a rechargeable Lithium-ion or nickel Cadmium battery.
These tools generate a high torque and like every other tool, there are guidelines to follow when using them to ensure the safety of the user and the well-being of the tool itself.
- Before you begin working with your cordless impact wrench, it is important to go through the instruction manual thoroughly to understand all the requirements, warnings and advice therein.
- Before commencing work with your tool, it is wise to analyze your work area and surrounding so as to inform your choice of accessories. Safety goggles, gloves, face mask and/or respirator are some of the accessories you should wear when on the job. They do not only protect you but also enhance your comfort when working. A good pair of gloves will reduce the impact of the vibrations from your power tool.
- Endeavor to wear the appropriate clothing when working with your cordless impact wrench. Flowing garments, flowing hair and jewelry should be kept out of the way to prevent accident.
- Impact wrenches make use of sockets and bits. There are regular sockets and impact wrench sockets. Endeavor to use the correct accessories that are compatible with your impact wrench. Regular sockets are too fragile to withstand the high torque generated by the impact wrench and may shatter during usage and cause accidents and lead to injury.
- Always inspect your cordless impact wrench and the accessories for signs of damage. This will reduce the risk of accidents and injury.
- Conduct a quick survey of your work area for concealed gas lines or pipes, fuel lines and leakages to prevent accidents. Cordless impact wrenches may produce tiny sparks which might lead to an explosion. There are two types of motors used in cordless impact wrenches; brushed and brushless motors. In brushed motors, the internal components in the motor come in contact with themselves, this might lead to sparks. In brushless motors, the components don’t come in contact; sparks are probably never experienced in these types of motors. Cordless impact wrenches with brushless motors are more durable and safer to use in hazardous environments.
- Never force your tool for tasks that are too complex. Always maintain a firm grip on your tool when using it and always apply the right amount of torque to avoid over-tightening and damage. Endeavor to always turn off the cordless impact wrench when not in use and when changing sockets and other accessories to avoid injury.
- Keep your cordless impact wrench away from the rain and direct sunlight. Do not use your tool in the rain and if this is unavoidable, take special precautions to protect yourself and your tool.