Milwaukee 3/8" Drive 5/16"-8MM Hex Bit Impact Socket

Milwaukee 3/8" Drive 5/16"-8MM Hex Bit Impact Socket

The 49-66-5151 Milwaukee 3/8" Drive 5/16"–8MM Hex Bit Impact Socket is a compact, heavy-duty socket designed for high-torque utility applications, built to perform where standard sockets start to struggle. Featuring a one-piece construction for maximum durability, a deep 1-3/4" hex fastening depth, and a Shockwave™ Lineman’s Impact Adapter included, it’s ready for everything from shear bolts to transformer connections. Its compact profile makes it ideal for tight spaces—because the toughest jobs rarely happen out in the open.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 49-66-5151
• Brand: Milwaukee
• Drive Size: 3/8" drive
• Hex Size: 5/16" – 8MM hex bit
• Design: One-piece construction for strength under high torque
• Fastening Depth: 1-3/4" hex depth for utility connectors and hex bolts
• Included Adapter: 7/16" to 1/2" Shockwave™ Lineman’s Impact Adapter
• Profile: Compact design for access in tight or confined spaces
• Retention System: Pin detent design for secure socket retention
• Compatibility: Use with hand tools or power tools
• Application Fit: Designed for shear bolt connectors and pad mount transformer connections
• Versatility: Works across a wide range of hex bit fastening applications

Ideal For

• Utility and lineman work requiring dependable, high-torque performance
• Tackling shear bolts and transformer connections without tool failure
• Working in tight or restricted spaces where access is limited
• Anyone who needs a socket that handles the pressure without slipping—or complaining about it