Kobalt 50 Piece Hex Shank Screwdriver Bit Set Downrod 18 inch and IAPMO cUPC certified Drill Driver Kit and IAPMO cUPC certified 4 Recommended Sq Series Name Kobalt Sub Brand N A Bit Size Set Bit Length Set Head Type Set Shank Size 1 4 in Shank Type Hex Double Ended No Coating Uncoated steel Case Type Hard Package Quantity 50 Set Individual Set Material Set Warranty None CA Residents: Prop 65 Warning(s) Yes Brand Model Compatibility N A 2 In 1 connector accepts all 1 4 inch hex shank accessories and 1 inch driver bits Titanium coating increases drilling speeds and extends tool life Fast and easy tool changes without having to re chuck Split point penetrates on contact to reduce drill bit walking 1 4 inch hex shank prevents bit spin out Compact screw guide prevents wobbling or disengaging from the bit while driving screws For use with standard and impact drill drivers and compatible with the Kobalt 2 in 1 connector