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원문 게시자: L Zipp ,

텍스트:

It's very easy, when loading a drill bit into the chuck to finish up with it off-centre, and it isn't always easy to tell that it isn't lined up when it is stationary. One fairly sure way of preventing misalignment is to close the chuck up to the point where the drill won't fit, and then open it out slowly until the bit slips in.

현황:

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