Sunex 318U Universal Impact Socket, 3/8 inch Drive, 9/16 inch, Radius Corner Design, Chrome-Molybdenum Steel

Sunex 318U Universal Impact Socket, 3/8 inch Drive, 9/16 inch, Radius Corner Design, Chrome-Molybdenum Steel

• The Sunex 318U is a 9/16 inch universal impact socket with a 3/8 inch square drive, crafted from chrome molybdenum (CR-MO) alloy steel with a radius-corner design and black phosphate finish for enhanced durability and fastener protection.
• Features:
  • 3/8 inch drive fits standard impact wrenches and ratchets for versatile workshop use
  • 9/16 inch universal style allows adaptable engagement with multiple fastener profiles
  • Forged CR-MO alloy steel construction delivers high strength for demanding impact applications
  • Radius-corner design reduces wear and rounding on fastener edges for longer fastener life
  • Dual marking (laser and stamp) offers clear, durable size identification under harsh conditions
• Specifications:
  • Manufacturer: Sunex
  • Part Number: 318U
  • Drive / Connection Type: 3/8 inch square drive
  • Size : 9/16 inch universal socket
  • Material / Finish: chrome molybdenum steel, black phosphate
  • Number of Points / Style: universal impact socket
  • System Compatibility : universal connections on automotive and industrial fasteners using 3/8 inch drives
  • Subcategory: Impact Sockets
  • Product Type / Function: universal impact socket
• The Sunex 318U universal impact socket can also be referred to as 9/16 universal impact socket, 3/8 inch drive universal socket, Sunex 318U impact socket, universal impact socket 9/16, and 42629 impact socket.

Sunex designs and manufactures durable hand tools using high-grade alloy steel and precision engineering, trusted for performance in demanding professional environments.

Q: What drive and socket sizes does the 318U support?
A: It features a 3/8 inch square drive and works with 9/16 inch universal fastener profiles.

Q: What benefits does the radius-corner design provide?
A: It increases contact on fastener flats rather than corners, reducing rounding and wear-extending both fastener and socket life.

Q: Is this socket built for heavy-duty use?
A: Yes. It is forged from chrome molybdenum alloy steel with a durable black phosphate finish designed for demanding impact applications.