DEWALT DW5578 1/2-Inch Diamond Drill Bit
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<b>[Product Information]</b><br>
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<li>Diamond Welded Tip for Greater life and Durability</li>
<li>Reverse Spiral Thread Delivers Continuous Water Feed for Longer Life and Increased Speed</li>
<li>Core Ejection Slot Removes Plug for Repetitious Holes</li>
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