DEWALT DW1623 11/16-Inch Black Oxide 1/2-Inch Shank Reduced Shank Twist Drill Bit Product Description DEWALT DW1623 11/16IN S D DRILL BIT From the Manufacturer Reduced shank black oxide drill bits from DeWalt are ideal for drilling holes larger than 1/2-inch with a standard 1/2-inch drill. These bits can be used in general applications including drilling in non-ferrous metal, wood, and plastic. Typically, the larger sizes are used in metal. Features 11/16IN S D DRILL BIT 11/16IN S D DRILL BIT 11/16IN S D DRILL BIT 11/16IN S D DRILL BIT 11/16IN S D DRILL BIT 135 degree split point drills on contact and prevents walking Parabolic flute design improves chip ejection in metal and wood drilling applications Black oxide coated for greater wear resistance Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute One year warranty, One year service contract, 30 day no-risk trial USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.