8'' Soft Jaw Boring Ring For CNC Lathe Chuck Center Turning Cutting Tool

I always felt this is the safest way to bore chuck jaws.

We tap the chuck jaws 1/2-20 thread .

Some CNC machines do not have clearance to use this device.  

We used it in a Mazak Integrex 200 SY

Please note: The 3 jaws shown in the picture are not included.  They are there to show how the device connects for boring .