AROJ Hardness Testers, Model : RAS, RAB-1, RAB-250 & TWIN are manually operated. All these models are suitable for testing hardness of metals & alloys of all kinds hard or soft, whether flat, round & irregular shape. These testers are simple in design & easy to operate, yet sensitive and accurate. Various models from the wide range are suitable for Tech. Institutes, Laboratories, Tool-rooms, Inspection, Heat treatment departments, Factories etc. These testers strictly confirm to IS:1586-2 for Rockwell & Rockwell superficial test.