Description says hand held only but I asked if it was ok for CNC and was told that it was a great CNC bit. This thing is a monster and cuts MDF like its nothing. it is a 1/4" bit so cant do detailed work but I use it for all my larger projects. Tried 1 plexi project and once I got the speeds dialed in it worked great. Customer service from this place is amazing as well when I asked if the bit could handle thick plexi I was informed to push it to its limits and if the bit broke he would send me a new one! I was also informed that more CNC bits were coming soon.