Using the DeWalt DWZPRB300 pruner accessory blade is easy. First, make sure your DCPR320 20V MAX* cordless pruner is turned off. Then, attach the blade according to the pruner's instructions. When you're ready to trim, simply position the blade around the branch or stem you want to cut and squeeze the pruner's handle. The non - stick coating will help the blade glide through the plant material, making clean cuts quickly. As for maintenance, after each use, wipe the blade with a clean cloth to remove any debris. If it gets dirty, you can wash it gently with mild soap and water and dry it thoroughly. Store the blade in a dry place to prevent rusting. Also, always keep the blade away from children.