+5% Metric Wire Rope and Sheave Gauge 20mm to 50mm 20 Blades
21 Stainless steel Blades in 2mm steps,
Blade sizes are
20,21,22,23,24,25,26,28,30,32,34,35,36,38,40,42,44,45,46,48,50mm
Sheave Gauge is +5%
Wire rope gauge is nominal
Size clearly engraved on each blade
Stainless steel permanent attachment point