Using the DeWalt DCK300P1 20V Max XR 3-Tool Woodworking Kit is a breeze. For the sander, just turn it on and start sanding your wood surface. You can adjust the speed according to the task. When using the jig saw, adjust the shoe bevel to the angle you need, and then change the blade easily with the keyless system. The oscillating multi - tool lets you quickly swap blades and attachments without wrenches. Remember to charge the 5Ah lithium - ion battery using the 8 Amp Fast Charger before use. Keep the tools clean after each use. Wipe them down with a dry cloth. Store the tools in the heavy - duty contractor bag provided to protect them from dust and damage. Avoid using the tools in wet conditions to prevent electrical hazards. If you have any problems, contact DeWalt's customer service.