drill

    Article

    A tool used for making holes in hard materials. A drill has a narrow, protruding, spirally-groove end, or bit, which revolves while penetrating through solid substances, such as wood, metal, and stone. The holes created by drilling can vary in circumference and length according to the circumference and length of the sharp end of the drill, which can be changed according to need.

    Photo Credit

     
    "A hand crank drill, photographed May 19, 2007" by Dan McKay is licensed under CC BY.

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    References

     
    Marriam-Webster Online
    2015 Drill. http://www.merriam-webster.com/dictionary/drill, accessed January 6, 2015.