It is an object of the invention to provide a tool for precision finishing and grooving of quenched steel by thinning a coating film of a CBN sintered compact tool. These compounds are useful in pharmaceutical compositions whose use includes the treatment of obesity. The combining member extends from the first package to below the second package to pass through the joint hole so that the combining member is partially exposed to improve the coherence between the first package and the second package. The functional circuitry is powered by the voltage and is configured to generate a signal using the voltage.