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The MILWAUKEE TOOL 49-66-6510 is a 1-inch drive, 1-3/8-inch, 6-point impact socket designed for heavy-duty fastening applications where standard chrome sockets would fail. Built from steel with a black phosphate finish, it resists corrosion and withstands the high-torque output of 1-inch drive impact wrenches. The 6-point geometry maximizes contact on hex fasteners, reducing the risk of rounding during high-load removal or installation. The non-sparking construction makes it suitable for use in environments where ignition hazards are a concern. This socket is sized for standard length applications and ships as a single unit.
This socket is intended for industrial, construction, and heavy equipment service applications where a 1-inch drive impact wrench is used. It is well suited for structural bolting, heavy machinery maintenance, and large-diameter fastener work. Licensed mechanics, ironworkers, millwrights, and industrial maintenance technicians are the typical end users. The standard length profile fits most impact wrench anvils without the need for an extension in open-access fastener locations.
Designed as a standard 1-inch drive impact socket for use with 1-inch drive industrial impact wrenches and torque multipliers that accept square-drive accessories.
Installation and use should be performed by qualified mechanics or maintenance technicians familiar with high-torque impact tooling. Always verify the socket is fully seated on the impact wrench anvil and the retaining pin or ring is secured before use. Do not use impact sockets on hand-ratchet drives, as impact-rated steel is not designed for that application. Inspect the socket for cracks or deformation before each use and remove from service if damage is found.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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