Drill America DWC Series Qualtech dovetail cutter designed for fast, efficient hole making. Dovetail cutters cut only that material necessary to produce a quality hole. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Weldon shanks feature a round shank with one of more flats machined into the side for easy indexing and alignment. Right-hand cut tools have a cutting action that engages when they are run in a clockwise direction.