+2.5% Metric Wire Rope and Sheave Gauge 20mm to 50mm
18 Stainless steel Blades in 2mm steps
Sheave Gauge is +2.5%
Wire rope gauge includes -3.125% and -6.25% (ASME)
Blade sizes are
20,21,22,23,24,26,28,30,32,34,36,38,40,42,44,46,48,50 mm
Size clearly engraved on each blade
Stainless steel permanent attachment point