1/4 Inch Drive x 7/16 Inch Deep 12-Point Socket Quantity:1 and the reducer adapts 1/2

and the reducer adapts 1/2 inch drive tools to 3/8 inch drive sockets

Part Number: 37CHSNB

Part Number: 43X400DPAPL

Part Number DWDBL53/64

1/4 Inch Drive x 7/16 Inch Deep 12-Point Socket Quantity:1 and the reducer adapts 1/2Deep 12 point opening fits double hex (12 sided), hex, and square shaped fasteners Socket geometry is designed to apply force to flat sides of fasteners and not the corners, preventing round off Deep length sockets reach into wells and accommodate the excess threads of longer shafts Extra large die stamped size markings are easy to read and cant wear off Polished, chrome plated finish easily wipes clean and is highly resistant to corrosion Four detent