1 7/8" x 12" x 1/2" Hollow Core Masonry Carbide Tipped Drill Bit

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1 7/8" x 12" x 1/2" Hollow Core Masonry Carbide Tipped Drill Bit MADE IN USA 5" cutting length Wave design transfers energy to bit more effectively for up to 40 percent faster drilling versus previous design Carbide-tipped centering bit Asymmetrical carbide teeth for faster cutting, longer life All-in-one core transmits power directly to the end of the bit