CSLU-Tool Woodworker Square Hole Drill Bits Mortising Chisel Set, Mortise Chisel & Bit Set ( 1/4-Inch, 5/16-Inch, 3/8-Inch, 9/16-Inch, 5/8-Inch and 1/2-Inch)
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<b>[Product Information]</b><br>
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<li>Fits all mortising machines and drill press attachments</li>
<li>1/4-Inch, 5/16-Inch, 3/8-Inch, 9/16-Inch, 5/8-Inch and 1/2-Inch sizes</li>
<li>Made of the highest quality tool steel</li>
<li>High performance flute design geometry for superior chip extraction</li>
<li>Hardness: HRC 48~50</li>
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