SIZE:05ss=1.70-1.80mm/0.06 inches
SIZE:7ss=2.10-2.20mm/0.08 inches
SIZE:12ss=3.00-3.20mm/0.12 inches
SIZE:16ss=3.80-4.00mm/0.15-0.16 inches
SIZE:20ss=4.60-4.80mm/0.18-0.19in.
