Efficient woodworking tool This countersink drill bit combines drilling and countersinking in one step, reducing tool changes and increasing productivity on your projects. Hex shank compatibility The 1/4' hex shank fits a wide range of power drills, making it easy to switch out bits as needed during work. Adjustable depth stop Equipped with an adjustable stop collar, this tool lets you set screw depth for a precise, clean finish every time. Key attributes Function: drill and countersink in one operation for efficient work Compatibility: 1/4' hex shank compatible with most power drills Size: 1/4' hex shank for broad tool compatibility Performance: adjustable depth control enables repeatable, professional results Use scenarios Cabinet and furniture assembly: drill and countersink in one pass to achieve flush screw heads and faster assembly Trim and molding installation: set a consistent screw depth for neat, professionallooking joints General wood projects: reliable performance for repeated countersinking and drilling across various wood types