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The MILWAUKEE TOOL 49-66-6217 is a 6-point, standard-length impact socket designed for heavy-duty fastening applications in the trades. Built from steel with a black phosphate finish, this socket accepts a 1/2 inch drive and fits 1-7/16 inch hex fasteners. The non-sparking construction makes it suitable for use in environments where ignition hazards are a concern. At 0.71 pounds and a compact profile measuring approximately 1.88 inches in length, it delivers durability without adding unnecessary bulk to a tool bag. Mechanical contractors, pipefitters, electricians, and ironworkers regularly rely on sockets in this size range for structural and mechanical assembly work.
This socket is suited for residential and commercial mechanical work where 1/2 inch drive impact wrenches are standard. Typical applications include fastening large hex-head bolts on mechanical equipment, structural steel connections, plumbing flanges, and HVAC equipment mounting. The 6-point geometry concentrates force on the flat faces of the fastener, reducing the risk of rounding under high-torque impact loads. The standard length profile fits most impact wrenches and air-drive tools without requiring an extension in typical installation clearances.
Designed as an OEM-style impact socket compatible with standard 1/2 inch drive impact wrenches, air tools, and ratchets used in mechanical, electrical, and structural trade applications.
This socket is installed and removed by licensed tradespeople including pipefitters, electricians, ironworkers, and HVAC technicians using 1/2 inch drive impact wrenches or ratchets. Always de-energize electrical equipment and relieve system pressure before fastening or loosening hardware on live mechanical systems. Inspect the socket for cracks or deformation before each use and replace if any damage is observed. Do not use impact sockets with hand-drive ratchets in applications requiring controlled torque — use a calibrated torque wrench instead.
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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