Depending on your machine (router or laser) and budget, several tools are widely used by the CNC community: How to create Halftone Patterns with your CNC Machine
Creating halftone art with a CNC machine—often called "drilling a picture"—converts standard digital images into a series of holes, lines, or dots that vary in size to mimic shading. To get started, you need specialized software that can translate raster pixels into CNC-ready G-code or vector paths. Top Halftone CNC Software to Download halftone cnc download