features and benefits:
- forged from the finest chrome molybdenum alloy steel
- radius corner design - to extend the life of fasteners
- design drives the side of the fastener instead of the corner
- provides increased strength, but also avoids rounding of rusted or damaged fasteners
this is an impact socket.It is 1-5/16 in.It is 1 in.Drive.Design makes socket strong and durable.