The drill tool has the advantages of capable of being used for drilling and tapping in a narrow space and the inside of a box part without using other devices, convenience and cost saving.
本发明具有以下效果：不使用其它设备，即可在隘小空间和箱体零件内部进行钻孔和攻丝，方便且节约成本。
The drill tool has the advantages of capable of being used for drilling and tapping in a narrow space and the inside of a box part without using other devices, convenience and cost saving.
本发明具有以下效果：不使用其它设备，即可在隘小空间和箱体零件内部进行钻孔和攻丝，方便且节约成本。
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