I have 52 different rods of prototype polymer that has been cast into 14mm OD (+/- 1mm) solid rods, ranging from 200-250mm long. I need these ground to 12.7mm OD (+ 0.00mm, -0.10mm), then sliced into "buttons". These buttons are 4.35mm thick (+/- 0.5mm), which should look like mini hockey pucks...