Using this Metex pipe chamfering tool set is easy. First, select the appropriate pipe size (110mm or 160mm). Place the PVC pipe into the PipeGrip support clamp and tighten it securely. Once the pipe is fixed, you can use the 110mm chamfer tool to start chamfering. When using the tool, make sure you have a stable working surface. For safety, wear gloves to protect your hands. After use, clean the tool with a dry cloth to remove any debris. Store it in a dry place to prevent rusting. Regularly check the tightness of the clamp and the sharpness of the chamfer tool. If the tool gets dull, it may need to be sharpened or replaced.