The Starrett 3815 Twin Analogue Hardness Tester features state-of-the-art design and rugged construction.  It is engineered to provide highly sensitive, accurate readings and excellent repeatability
in all Rockwell and Superficial Rockwell hardness scales.
The 3815 is ideal for heat treatment facilities, tool rooms, workshops, laboratories and inspection labs.
• Direct analogue dial reading.
• Advanced design provides Rockwell and
Rockwell Superficial testing.
• Engineered to provide highly sensitive and
accurate readings.
• Conforms to ASTM E-18.
• Tests Rockwell Scales:  A, B, C, D, E, F, G,
H, K, L, M.
• Tests Superficial Rockwell Scales:  HR15n,
HR15T, HR30n, HR30T, HR45n, HR45Ts.
• Includes a diamond conical indentor, 1/16”
ball indentor, HRC, HRB, HR15n, HR30n
and HR45T test blocks, 150mm (5.87”) test
table, 63mm (2.5”) flat anvil, standard vee
anvil, accessory case and dust cover.