7pc Universal Swivel Impact Socket Set 1/2inch Drive

●Radius corner design contacts only flat surfaces of fastener head to eliminate rounding off corners and extend the life of fasteners.
●Ball/swivel action makes sockets useful in tight corners.
●1/2'' drive 6 point swivel metric.
●13,14,15,17,18,19,21mm
●CRMO

Drop forged, heat treated, chrome molybdenum steel construction with durable phosphate finish.
Radius corner design contacts only flat surfaces of fastener head to eliminate rounding off corners and extend the life of fasteners.
Ball/swivel action makes sockets useful in tight corners.
1/2-inch drive 6 point swivel metric 
Contents: 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, 21mm