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The DeWalt countersink with tapered drill bit is ideal for fine-wood drilling and provides you with superior speed while leaving an ideal finish. Using a four-cutter countersink and 11/64-inch drill bit, this product is uniquely designed to allow you to drill, countersink, and counterbore all in one step. Replacement tapered bits are available.
From the Manufacturer
DeWalt DW2568 #8 Countersink with 11/64-Inch Drill Bit