| 摘要 |
PURPOSE: A multi-functional electric drill is provided to use non-powered tools through one drill by transiting power leftward and rightward through gears. CONSTITUTION: A general powered drill only transits power forward and backward. A multi-functional electric drill separates power to a left direction and a right direction using a power train(30). A non-power tool(16) is variously used by enabling a multi-functional electric drill to transit power to gears. A bearing(10) securely holds the power train. The non-power tool is freely assembled and can be used as various functions.
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