High quality chro-moly alloy steel.
GP High Torque Drive Socket design for increased strength with reduced chance of fastener rounding.
Lifetime Warranty.
Comes in a molded case.
Molded cases feature removeable top for use as a tool box tray.

19 Piece Set Includes (1/2" Drive; 6 Point): 3/8" thru 1-1/2" standard length impact sockets.