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  • SDS Core Bits

    The Bosch Speed Core system allows a standard SDS rotary hammer drill to drill core holes in concrete in diameters up to 4-3/8".  The new Bosch Speed Core system is a simple two piece design.  First, choose your SDS core in sizes ranging from 1" to 4-3/8".  Secondly, choose from a 13" extension or a 17" extension.  The 13" extension will allow you to drill at a depth of approximately 11" and the 17" will do about a 15" depth.  The shank includes a built in starter bit, no more loosing the starter pin in the hollow of a wall!  This system allows you to have one shank, and several SDS cores.