PCB Adjustments

I need to make some adjustments to an existing PCB. Basically I need to add two millimeters to the radius (PCB is round). I have an existing design that I will provide.

PCB Specification:
Rigid PCB
Copper layers (0.035 mm thick)
PCB (1.5748 mm thick)
Board Size: 1.25" x 1.25"
Number of Layers: 2
Material: FR4-TG130
Finishing: Lead Free HAL
Copper Thickness: 1oz.