CNC cut holes to big

Hello all, i try to cnc a plate in Luban, 3mm thick, 180mm x 180mm with 6 holes 13.2 mm, but when the cnc is ready the holes are 14.6 instead off 13.2 mm, need some help with this problem, thanks.

Did you just draw circles in Luban? Probably you have cut on the line of the circles. And then you need to take into account the size of your milling bit. Or use software that allows you to tell on which size of the line to make the cut.

Draw the circles in fusion, but want to try luban for cnc, i think, nextime i do the gcode in fusion.