DEWALT, 1 1/8 in Drill Bit Size, 15 3/4 in Max Drilling Dp, Hollow Core Bit - 54FH83|DWA58118 - Grainger
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Amazon.com: DEWALT Concrete Drill Bit, Carbide Core Bit Body, 4-Inch by 4-Inch (DW5905) : Everything Else
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DeWalt Impact Ready 10-Piece Titanium Hex Shank Drill Bit Set, 1/8 In. thru 3/8 In. - Gillman Home Center
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Amazon.com: DEWALT Concrete Drill Bit, Carbide Core Bit Body, 2-1/2-Inch by 4-Inch (DW5902) : Everything Else
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