Ortur diode lasers engrave wood, leather, paper, and dark or coated acrylic well, but they aren't suited to cutting or marking bare metal or glass. Most Ortur models run in the 5W-20W optical power range, which is enough to cut thin plywood and MDF in multiple passes but not thick hardwood in one go. Organic and coated materials are where diode lasers perform best, while metal work requires a fiber laser instead.