Double Sided Multilayer Min Pref Min Pref Min Track Width 0.005 0.008 0.005 0.008 Track To Track Spacing 0.005 0.008 0.005 0.008 Min Drill Size 0.008 0.020 0.008 0.020 Min Annular Ring 0.006 0.010 0.010 0.012 Bare Board Test(flying Probe) 0.006 0.006 Router Tolerance 0.010 0.010.