Using these Toughbuilt left - cut aviation snips is easy. First, choose the right cutting position based on your needs. If you need more strength, use the rearward grip. For better control, go for the forward grip. To start cutting, simply place the snips on the material you want to cut, like stainless or cold - rolled steel, and squeeze the handles. The spring action will make it fast and easy. When you're done, use the one - hand - operable lock to secure the tool for storage. Make sure to keep the cutting edges clean after each use. You can use a dry cloth to wipe off any debris. Also, don't use these snips on materials harder than what they're rated for, as it may damage the blades. If you have any issues, remember that registering your product on the manufacturer's website gives you a free extended warranty on top of the standard 2 - year one.