3/8 Inch Diameter: Suitable For Drilling Holes Of Specific Sizes - Black Finish: Often Indicates A Coating For Added Durability And Corrosion Resistance - High-Quality Steel: Durable And Resistant To Wear - Sharp Cutting Edges: Provide Clean Cuts And Efficient Drilling - Metalworking: Drilling Holes In Metal Pipes, Sheets, Or Plates - Woodworking: Creating Precise Holes For Screws Or Dowels