What Is 4x8 CNC Router? 4x8 CNC router is a type of most common computer numerical controlled machine tool with a handheld router as a spindle, and 4' x 8' (48" x 96" in inches) table top for full sheet woodworking, which is also known as 4x8 CNC router table, 4x8 CNC router kit, 48x96 CNC router ta