I received the laser for free (but paid the taxes and customs fees myself). I was contacted by xTool and asked if I wanted to test their new D1 Pro 2-in-1 laser kit and write a review about it. Blue diode lasers and also CO2 lasers (except high-power machines with oxygen or nitrogen assist) can only mark the surface of steel and titanium with the help of marking spray. The special thing about the infrared laser is, that it can engrave and cut metals. The new xTool D1 Pro 2-in-1 Kit which launched in August includes a 1064nm infrared laser in addition to the 455nm blue laser. First, machines with 10W optical power output appeared on the market and earlier this year xTool and Atomstack presented their 20W diode modules. Since that time, there has been a lot of development in the diode laser market. I was mainly interested in cutting and so decided against diode lasers and instead became a member of a local maker space with two CO2 laser cutters. While 5W is enough to do some engraving, cutting 3mm or 1/8 inch wood will require very slow speeds and multiple passes. But at that time you only found diode lasers with a maximum power of 5W. When I started with laser cutting a few years ago, I briefly consider buying a diode laser because of their lower prices and simpler operation compared to CO2 lasers. Detailed View on the Parts of the D1 Pro.