12 Pcs Magnetic 5/16 Inch Nut Driver Bit Sets Hex Power Socket Adapter
For use with hexagonal head self drilling screws. Hex Socket feature magnet for holding the screws in place. Hex Socket Size : 8mm/ 5/16"; Hex Shank Size : 6.35mm/ 1/4". Enable collaborative features and customize widget:Bing Webmaster Portal.