The Mitutoyo HR-521 Rockwell and Superficial Type Hardness Testers features real-time electonic force control. The Hardness Testers feature auto conversions to all hardness scales or tensile strenght, extended indenter arm reaches inside diameters, OK/±NG tolerance judgement, data output plus many more features.
Starrett 3816 Digital Bench Hardness Tester
This microprocessor controlled 3816 Bench Hardness Tester offers easy, fully automated testing procedures and provides highly sensitive and accurate readings. The 3816 can measure the full regular Rockwell Scales according to ASTM and SAE guidelines.