Features and Benefits:

• Forged from the finest chrome molybdenum alloy steel
• Radius corner design - to extend the life of fasteners
• The 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 Impactact socket. It is 15 mm. It is 1/4 in. drive and 6 point. Design makes socket strong and durable.