+2.5% Metric Wire Rope and Sheave Gauge 3.5mm to 20mm 21 Blades

+2.5% Metric Wire Rope and Sheave Gauge 3.5mm to 20mm

21 Stainless steel Blades in 1mm steps, plus 3.5mm, 4.5mm, 5.5mm, 6.5mm

Blade sizes are 

3.5,4,4.5,5,5.5,6,6.5,7,8,9,10,11,12,13,14,15,16,17,18,19,20 mm

Sheave Gauge is +2.5%

Wire rope gauge includes -3.125% and -6.25% (ASME)

Size clearly engraved on each blade

Attachment point