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).

Small and easy to use, it is one of the standard tools used by nearly all worker caste Protoss. In the hands of an expert engineer, the Graviton calibrator has the potential to rival a psionic blade in certain situations (Dr. Who: Sonic screwdriver).

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