DEWALT DW1623 11/16-Inch Black Oxide 3/8-Inch Shank Reduced Shank Twist Drill Bit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>The product is 11/16" HS STL Drill Bit</li><li>Easy to use</li><li>The product is manufactured in China</li><li>135 degree split point drills on contact and prevents walking</li><li>Parabolic flute design improves chip ejection in metal and wood drilling applications</li><li>Black oxide coated for greater wear resistance</li><li>Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute</li><li>One year warranty， One year service contract， 30 day no-risk trial</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41glXRzYlmL.jpg" noproxy>