Drilling device

The utility model provides a drilling device which comprises a body part provided with an operation end and an operation end which are oppositely arranged, the operation end is used for drilling operation, and the body part is provided with a plurality of installation positions which are arranged at intervals in the direction from the operation end to the operation end; the protective cover is provided with a first opening end and a second opening end which are oppositely arranged in the direction from the operation end to the working end, the periphery of the body part is sleeved with the first opening end, the first opening end and the outer wall of the body part are sealed in a matched mode, and the first opening end is selectively arranged at one installation position. By means of the technical scheme, the problem that in the prior art, a drilling device is poor in safety can be solved. 本实用新型提供了一种钻孔装置，其包括：本体部，具有相对设置的操作端和作业端，作业端用于进行钻孔作业，本体部具有多个沿操作端至作业端的方向间隔设置的安装位置；防护罩，具有沿操作端至作业端的方向相对设置的第一开口端和第二开口端，第一开口端套设在