+2.5% Imperial Wire Rope and Sheave Gauge 3 -7/8 to 5" (10 Gauges )
3-7/8",4", 4-1/8",4-1/4",4-3/8",4-1/2",4-5/8",4-3/4",4-7/8",5"
Sheave Gauge is +2.5%
Wire rope gauge includes -3.125% and -6.25% (ASME)
Size clearly engraved on each blade
Stainless steel permanent attachment point