Kobalt 46pc Drill and Drive Set Model 89421 46-Piece Drill and Drive Set 7 titanium drill bits for multi-purpose drilling in wood, metal and plastic - sizes 1/16-in through 1/4-in Includes the most common drill bit sizes and screwdriver bit types Innovative I-beam impact magnetic bit holder withstands high torque use, absorbs impact shock and extends driver bit life SpeedFit hex shank accessories are compatible with standard and impact drill drivers and quick change connectors