@idris Not knowing your experience with CNC-Milling a PCB, I post two links YouTube and Kicad-Post only to show that I Mill large Pads and wider Tracks to accommodate Milling ‘Hysteresis’ that can result in narrower/wider Tracks and Pads.
The 1st Video was done on a low-cost CNC as a Demo. Pads get milled at around 2-minutes into the First Video (Video also contains a view of Milling Parameters/Info at about 1-Minute)
The second link contains some Tip’s, Video and Results, milled on a different machine…