The Laser Class 4, Laser Output Level: 12000mW. Pro Pack Laser Engraver, 22W Laser Engraver Machine with Air Assist and Rotary Roller, No Heat Marks, High Accuracy Laser Cutter CNC Machine for Engraving Cylindrical Objects and More --- Stronger to Cut and Engrave Easier to cut through thicker materials. It engraves obvious patterns on objects as hard as stainless steel. It can cut through 12mm woodboard with one pass and up to 18mm woodboard. --- 0.06mm Compressed Spot for Engraving The improved 6-lens array compresses the focal spot to only 0.06mm. It will deliver more details in your engravings. --- Groundbreaking Integrated Air Assist Manually adjust the air assist steplessly through the knob, or it can autimatically adjust the airflow through LIGHTBURN to remove the smoke and protect the laser lens, bringing a cleaner result. --- Active Stop Function With a gyroscope, the machine will stop working in case of accidental tilt, flip or drop, with the buzzer and indicator sending alert --- Multi-level Fixed Focus Block It helps you find the suitable focus distance for different depths of materials without measuring. --- Built-in Leveler A visualized aid to level the machine body for ideal engraving consistence. --- Laser Protective Cover The protective cover around the laser head will prevent the laser from dazzling the eyes. --- Explore Unlimited Possibilities of Creation With 400x415 workspace, it allows users to process a larger piece of material at a time. (Optional raisers) --- Measuring Scale on the Axis Profiles Quick to locate the engraving position and gauge the size of the engraving object.