Milwaukee Tool 45-34-8040 Deep Hand Socket 3/8 Drive 6 Pt

Product Description

The Milwaukee Tool 45-34-8040 is a metric deep hand socket designed for professional-grade fastener work in tight or extended-reach applications. Built with a 3/8 inch square drive and a 6-point contact profile, this socket delivers firm, reliable torque transfer to hex fasteners while reducing the risk of rounding. The chrome finish provides corrosion resistance for long service life in demanding shop or field conditions. At 4.9 inches in length, it handles deep-set fasteners that standard-length sockets cannot reach. Suitable for licensed tradespeople and experienced technicians across HVAC, plumbing, electrical, and general mechanical service work.

This socket is intended for metric fastener applications requiring extended reach, such as recessed bolt heads, long studs, or fasteners seated inside housings or panels. It fits standard 3/8 inch drive ratchets, extensions, and torque wrenches. The 6-point design is preferred over 12-point configurations when working with worn or tight fasteners, as it applies force across flat surfaces rather than corners, reducing fastener damage in service scenarios.

Key Features

• 3/8 inch square drive compatible with standard ratchets and drive accessories
• 6-point contact geometry reduces fastener rounding under high torque
• Deep socket length of 4.9 inches reaches recessed and deep-set metric fasteners
• Chrome finish provides corrosion resistance for shop and field use
• Metric measurement system for compatibility with metric fastener sets
• Lifetime warranty backed by Milwaukee Tool

Compatibility

Designed for use with 3/8 inch square drive ratchets, breaker bars, torque wrenches, and extensions in standard tool sets. Fits metric fasteners requiring a deep-reach socket profile.

Installation Notes

Installation and removal of fasteners with this socket should be performed by qualified tradespeople familiar with appropriate torque requirements for the application. Ensure the drive tool and socket are fully seated before applying torque to prevent slippage or fastener damage. Inspect the socket for cracks or wear before each use, and remove from service if any deformation is found. Do not use impact-rated drive tools with hand sockets unless the socket is rated for impact use.