... .6mm(0.05) 3>single/cross/straight type razor barbed wire 1>BTO-12,BTO-18,BTO-22,BTO-28,BTO ... to the aggressive perimeter intruders, with piecing and cutting razor blades mounted at the top of the wall, also ... for cottage and society fence, and other private buildings. Razor Blade SpecificationReferenceNumberBlade StyleThicknessmmWireDiameterBladeLengthBladeWidthBladeSpacingBTO-120.5±0.052.5mm±0.110mm ...