The advanced design of the Phase II 900-375 Rockwell/Superficial Rockwell Twin Hardness Tester makes it easy to operate. The latest Phase II analog Rockwell Hardness Tester tests both Rockwell hardness and Superficial Rockwell hardness in one unit, with state of the art design and dynamic precision only found at Phase II. The Phase Ii Twin Rockwell/Superficial Rockwell hardness tester is ruggedly engineered to obtain highly sensitive and accurate readings. Conforming to ASTM E-18 Rockwell hardness standards, this hardness tester will offer unmatched repeatability in all Rockwell hardness scales. A perfect performer suited for any environment including heat treatment facilities, tool rooms, workshops, laboratories and inspection labs.  Direct analog dial reading  Engineered to obtain highly sensitive and accurate readings  Conforms to ASTM E-18 o Minor Load: 3 Kgf, 10 Kgf o Major Load: 15Kgf, 30Kgf, 45Kgf, o 60 Kgf, 100 Kgf, 150 Kgf o Test Force Application: Dead Weight o Test Force Control: Manual o Results Display: Dual Scale Dial o Vertical Capacity: 6.0″ o Throat Depth: 5.5″ o Height: 26.0″ o Width: 18.2″ o Depth: 9.4″ o Shipping Weight: 250 lbs o Hardness Scales: o HRA B,C,D,E,F,G,H,K , L, M o (superficial) HR15N, HR15T, HR30N, o HR30T, HR45N, HR45T ** Last Calibrated on 4/19/2021 ** ** Accessories as Shown in the Photos ** ** As New Condition **