Spring loaded drag tool for 1/8 bits to suit a 2418 style CNC with a 42mm spindle holder.
This concept is an attempt to cut traces for creating PCBs, while avoid use of fine tipped spinning tools that are prone to breakage.

Additional Parts List

• 1/8 collet to 5mm shaft
• 5 x 100mm round shaft
• Spring 5mmID 6.3mmOD 25mm long
• 1/8 scribe bit