IEY1643 Features: * Designed for drilling in wood, metal, and plastic * Precision ground from premium high speed steel * 118 helical point is self centering and requires feed pressure * Ideal for machine shops, garages, farms, and highway mantenance shops * 3-7/8"" flute length * 6"" overall length Dimensions: * Reduced shank for drilling large holes with 1/2"" drills and drill presses * 1"" diameter