SIZE: 6ss=1.90-2.10mm/0.07 inches
SIZE: 7ss=2.10-2.20mm/0.08 inches
SIZE:9ss=2.50-2.60mm/0.10in.
SIZE:10ss=2.80-2.90mm/0.11in.
SIZE: 12ss=3.00-3.20mm/0.12 in.
Size:16ss=3.80-4.00mm/0.15-0.16in.
SIZE:20ss=4.60-4.80mm/0.18-0.19in.
SIZE:30ss=6.32-6.50mm/0.25-0.26in.
SIZE:40ss=8.41-8.67mm/0.33-0.34in.
