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The Milwaukee Electric Tool Corp 49-66-4533 is a Shockwave impact-rated magnetic nutdriver designed for fast, accurate fastening in professional trade applications. Built to a 5/16 inch drive size with a 2-9/16 inch overall length, it seats fasteners securely using a powerful internal magnet that keeps nuts and hex fasteners in place during driving. Color-coded rings on the shank allow for instant size identification without stopping to read labels. A chamfered edge at the socket opening lets technicians locate and engage fasteners in confined spaces where straight-on access is limited.
This nutdriver is suited for electricians, HVAC technicians, plumbers, and general tradespeople working with hex-head fasteners on panels, equipment enclosures, sheet metal assemblies, and mechanical systems. The 5/16 inch size is commonly used with electrical knockouts, breaker panel hardware, and sheet metal screws encountered in residential and light commercial service work. The Shockwave design handles the torque demands of impact drivers, making it a durable choice for technicians who prefer impact tools for production or repetitive fastening tasks.
Designed as an OEM-style impact-rated nutdriver for use with standard 1/4 inch hex shank impact drivers and drill-drivers accepting 1/4 inch quick-change accessories.
Electricians and HVAC technicians are the primary installers for nutdrivers of this type. Ensure the tool is fully seated in the driver chuck before applying torque. When working near energized components, de-energize and lock out equipment per applicable NFPA 70E safe work practices before using hand or power tools on electrical panels or enclosures. Do not use impact drivers at torque settings that exceed the fastener or equipment manufacturer specifications.
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