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1)Core Bits are made to drill avariety of aggregates including concrete, asphalt,granite,marble,masonry or natural stone. 2)Core Bits can be used to make any type of opening. 3)Coring continuous holes,commonly referred to as stitch or line drilling, crestes the shape of the desired opening. 4)Most coring bits can be run by an electric drill motor ranging from 1/2" diameter,powered by a minimum 120volt 15 Amp. [ZL diamond tools co.,ltd.]
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