The Graviton calibrator is a Protoss power tool used in engineering and maintenance of machinery. A scaled down variant of the graviton beam technology used by Phoenix fighters, the tool uses a concentrated beam of gravitic energy to move small parts around without disturbing any other component (Dead Space: Kinesis Module). Because gravitic energy rarily effects the sensitive circuitry, the graviton calibrator is ideal for handling delicate and precise work (Mass Effect 3: Toothbrush).