Irwin 39108 1/2-Inch by 18-Inch Installer Twist Drill Bit
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<b>[Product Information]</b><br>
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<li>This product is easy to use.</li>
<li>This product is highly durable</li>
<li>This product is manufactured in China</li>
<li>18" long, 1/2" diameter, .370" shank</li>
<li>Hole in flute (head) makes it easy to pull wires through hole in wall</li>
<li>Boring action is faster, smoother, cleaner in most every material encountered in wiring installations</li>
<li>Longer flute section for deeper boring</li>
<li>Special flute finishing process assures quick chip removal, no clogging, no binding</li>
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