Using the Milwaukee 2462 - 20 is easy. First, make sure the battery is fully charged. The on - board fuel gauge will show you the battery level. Insert the appropriate bit into the 1/4" hex chuck. Hold the tool with the ergonomic handle for a comfortable grip. Then, press the trigger to start fastening. The high - speed motor at 0 - 2,500 RPM will quickly get the job done. When you're done, turn off the tool. For maintenance, keep the tool clean. Wipe it down after each use. Don't expose it to extreme temperatures or moisture. Charge the battery regularly and don't over - charge it. The tool comes with a 5 - year warranty, so if you have any problems, contact the manufacturer.