The 1.3mm hex screwdriver is made for the Peach V4 puzzle, ensuring a perfect fit for all hexagonal grub screws. This hexagonal (six-sided) screwdriver is specially designed for tightening or loosening the grub screws. It's the ultimate tool to upgrade your puzzle-solving experience.
 
Please note: this tool is for the Peach V4 puzzle only. With your puzzle order will be an Allen key to retrieve your grub screw, for an upgraded version we would recommend choosing the 1.3mm hex screwdriver.