... BWG19-BWG283. Aperture diameter:1.2,1.5=1/2, 1.8=5/8, 2=3/4 2, 2.5=1, 2'' 3''/28mm 4,5,6,7,8,104.Feature: Durable ... &strongly rust-resistant and fine anti-corrosion.5 ... "10mm27,26,25,24,23,22,211/2"13mm25,24,23,22,21,20,5/8"16mm27,26,25,24,23,223 ... )Strand1"25mm22,21,20,182'11-1/4"32mm22,21,20,183'21-1/2"40mm20,19,184'32"50mm20,19,185 ...