SIZE: 5ss=1.70-1.80mm/0.06 inches
SIZE: 7ss=2.10-2.20mm/0.08 inches
SIZE: 9ss=2.50-2.60mm/0.10 inches
SIZE:20ss=4.60-4.80mm/0.18-0.19in.
SIZE:16ss=3.80-4.00 mm/0.15-0.16 inches
SIZE:30ss=6.32-6.50mm/0.25-0.26in.
