Software like "cnckad" likely pertains to computer-aided design (CAD) and computer-aided manufacturing (CAM) systems used in CNC machining. These systems enable users to design parts (CAD) and then generate the instructions (G-code) that a CNC machine uses to cut or shape the material (CAM).
The cnckad 2006 85 software boasts an impressive range of features, including: cnckad 2006 85 full link
What CNC-KAD likely is
Changes made to the 2D geometry automatically update the dimensions and the punching or cutting definitions. Legacy Support: Supports older file formats including DXF, DWG, and IGES. Software Status & Support Current Versions: cnckad 2006 85 full link