In order to meet the needs of the new era, the modern tool industry, which has developed on the basis of the traditional tool industry, has produced qualitative leaps and changes in all aspects.

According to statistics from the China Rubber Industry Association, the association's 266 major member companies recorded combined industrial output value of RMB34.4 billion (approx $5US billion) in the first quarter of 2009, a year-on-year decline of 13.6 percent. These companies' total profits decreased 26.1 percent to RMB969 million (approx $142US million).

1) the diameter of the drill string shall not exceed the allowable value of the electric drill. 2) the drill must be clamped with the key. Do not use other tools to hit the drill chuck. 3) do not exert too much force when drilling, to prevent the motor from being overloaded. If the speed is found to be decreased, the power should be cut off immediately. 4) the piecemeal workpiece must be firmly fixed on the fixture. 5) no gloves.