Home » Products » Materialographic Consumables » Precision Non-Ferrous Metal Cutting Precision Non-Ferrous Metal Cutting Aka-Cut 400 HV, 150 mm Cut-off wheel for precision cutting non-ferrous metals with a hardness of 50 – 400 HV (10 HRC). This cut-off wheel measures 150 x 0.5 x 12.7 mm.