I know there is 5" drill bit in home depot. You may find bigger ones

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送交者: chinada 于 2010-11-26, 13:14:20:

回答: 这个可以钻比较大的孔 由 coubert 于 2010-11-26, 12:50:42:

in other tool stores.
http://www.coastaltool.com/a/lenox/holesaws.htm
You can also use a adjustable hole cutter.
http://www.holepro.com/


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