Using your Milwaukee 2637-20 cordless shear is a breeze. First, make sure your 18V lithium-ion battery is fully charged and inserted correctly. Then, adjust the head orientation as needed using the tool-free 360° rotating feature. Simply hold the shear with a firm grip thanks to its ergonomic design, and use the variable speed trigger to start cutting. You can use it to cut 18-gauge steel or 20-gauge stainless steel. When not in use, clip it to your belt using the belt clip. As for maintenance, keep the tool clean after each use. Wipe it down with a dry cloth. Store it in the contractor bag provided to protect it from dust and damage. Remember, the tool comes with a 5-year warranty and the battery has a 3-year warranty. If you have any issues, contact customer service.