Size:5ss=1.70-1.80mm/0.06 inches
SIZE: 7ss=2.10-2.20mm/0.08in.
Size:9ss=2.50-2.60mm/0.10in
Size:16ss=3.80-4.00mm/0.15-0.16in.
Size:40ss=8.41-8.67mm/0.33-0.34in.