CNC Stylus - Will it fit my CNC machine Home » Knowledge Base » CNC Stylus Knowledge Base » Before You Buy » Will it fit in my CNC machine? CNC Stylus Knowledge Base Before You Buy What does it do? What is included? What is special about it? What tools can it hold? Will it fit in my CNC machine? Tutorials Cutting vinyl stickers Drawing with a pen or marker CNC Stylus Knowledge Base Before You Buy What does it do? What is included? What is special about it? What tools can it hold? Will it fit in my CNC machine? Tutorials Cutting vinyl stickers Drawing with a pen or marker I own a SmartBench Yes! CNC Stylus has been designed with SmartBench in mind, and will fit all models. I own a different CNC machine The CNC Stylus has a 43mm boss, designed to fit in any standard 43mm collar (commonly used to hold router heads).Key:A: Clamping boss