Combined Drill Bit & Countersink Bit, #1 Size SKU UB-4710572 $8.02 Quantity discounts available QuantityPrice (0)No Reviews yet Number of Pieces Item Custom Price Quantity -+ Add to Cart Details Plain-type combined drills and countersinks are used to produce a center hole in workpieces that require precision drilling or machining between cente... Details Back DetailsPlain-type combined drills and countersinks are used to produce a center hole in workpieces that require precision drilling or machining between centers. Ratings & ReviewsNo reviews availableBe the first to Write a Review