SIZE: 08ss 2.30-2.40mm=0.09 inches
SIZE: 9ss=2.50-2.60mm/0.10 inches
SIZE: 12ss=3.00-3.20mm/0.12 inches
SIZE:16ss=3.80-4.00mm/0.15-0.16in.
SIZE:20ss = 4.60-4.80 mm/0.18-0.19 in.
