Leeb Hardness Tester Rebound Durometer Metal Steel Hardness Measuring
Direct display of hardness scales HRB, HRC, HV, HB, HS, HL. Hardness Scale：HL,HB,HRB,HRC,HRA, HV,HS. Cleaning brush (I)---1. Testing surface of a small hollow space. Power :3V(2 AA size alkaline battery (not included). ).