Portable Leeb Hardness Tester ASTM A 957 Scales B HLD HRB HRC Vickers HV Measuring Range 0.1HRB 0.1HRC 1HB 1HLD 1HS 1HV 1MPa Resolution +/-6 HLD Indenter 0.79 Features Automatic Power Off Connect with Printer Via Bluetooth Memory of 99 Measurement Values for Browsing Includes Hardness Test Block D Small Support Ring