... -102.6)HS, (13.5-101.7)HRBOptional impact device: D/ C /DC / D+15 / DL/ GNumber of impact devices Equipped with one ... readingsMaximum hardness of the measured work: 940HV(for D,DC,DL,D+15,C impact device)Radius of curvature of the measured work ... tool steel, stainless steel, gray cast iron, nodular cast iron, aluminum casting alloy, copper zinc alloy(brass), copper tin alloy(bronze ...