Hardness scales : HRC, HRB, HB, HV, HS, HLD Measuring range: HLD 200 to 900 HRB 13 to 100 HRC 20 to 68 HB 20 to 655 HV 80 to 950 HS 32 to 100 Accuracy: ± 6HLD (for HLD ≈ 800) Measuring direction: 0° - 360° Memory: 270 average readings in 9 freely ...