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      Robertson® bits and screws are designed for secure recess engagement and dependable performance across demanding applications.
      
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  - - The Original Robertson® Drive
      Invented in Canada in 1908, the Robertson® square-drive system changed fastening forever with better grip, reduced cam-out, and faster installation. More than a century later, it remains the trusted choice of professionals everywhere.
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ESR-4421

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Robertson Screws, Trusted for Generations

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