The 3/8 inch drive, A/F (Across Flat) impact sockets are deep sockets suitable for use with UNF and UNC threads.
Features and Benefits
• Manufactured from high quality chrome molybdenum steel for strength and durability
• Black oxidised finish resists corrosion
• Permanent laser etched markings for easy identification
• Spring ball socket retainer
Standards
• SAE
• USA Federal Standard GGG-W-660A