As the hole deepens and the material boils, vapor produced erodes the molten walls blowing ejection out and even more enlarging the hole. Nonmelting products which include wood, carbon, and thermoset plastics are often Slash by this process. Mortise and tenon joints are similar to finger joints, except the "fingers" https://fermatwft13r97381.mpeblog.com/66047134/not-known-facts-about-cnc-laser-for-sheet-metal