1. Safety First: Always ensure you are using the scraper in a safe and secure environment. Do not use the tool on glass surfaces that are already compromised or damaged as this could lead to further harm.

  2. Unpack the Tool: Remove the Glass Scraper Tool from its packaging. Store the spare blades in a secure location that's out of the reach of children and pets.
  3. Remove the Protection Cap: Take off the black protection cap from the blade.
  4. Unscrew the Holding Knob: Carefully unscrew the black knob that secures the razor blade in place. Be cautious not to let the nut on the other side fall out. If it does, you will need to put it back before proceeding to the next step.
  5. Rotate the Blade: Remove the razor blade and rotate it 180 degrees before reinserting it back into the tool (so the sharp end is now exposed).
  6. Secure the Blade: Screw the knob back into place to secure the razor blade