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The MILWAUKEE TOOL 49-16-1643 is a 6-point deep impact socket designed for use with 9/16 inch hex drive impact tools. Built from steel with a black oxide finish, it accepts a 7/16 inch fastener and delivers an overall length of 0.67 inches. The non-sparking construction makes it suitable for environments where ignition risk is a concern. This socket is a direct-drive tool for professional tradespeople — electricians, HVAC technicians, pipefitters, and general contractors who need reliable torque transfer in tight or hazardous workspaces.
This impact socket is suited for residential and commercial applications where a 9/16 inch hex drive interface is required. The deep 6-point profile provides full fastener engagement, reducing the risk of rounding hardware under high-torque impact conditions. It is commonly used in mechanical, electrical, and plumbing rough-in work where non-sparking tooling may be required by site safety protocol or code compliance.
Designed as an OEM-style impact socket for use with 9/16 inch hex drive impact tools in professional trade applications.
This socket is installed and removed by hand onto compatible 9/16 inch hex drive impact wrenches or drivers — no special tools required for attachment. Always de-energize or lock out equipment before working on fasteners in live electrical or mechanical systems. Confirm the socket is fully seated on the drive tool before applying torque. Non-sparking sockets are not a substitute for full hazardous-location PPE and should be used in accordance with applicable site safety requirements.
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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