Milwaukee 48-28-1040 12 in Quik-lok Extension 7/16 Hex Shank

Product Description

The MILWAUKEE ELECTRIC TOOL CORP 48-28-1040 is a 12-inch Quik-Lok extension designed for use with any 7/16-inch hex shank tool or accessory. It extends reach in confined or deep-set fastening applications without requiring a tool change. The impact-rated construction handles the high-torque demands of cordless and corded impact drivers. The hand-release Quik-Lok mechanism allows fast bit or accessory swaps on the job without additional hardware. Electricians, HVAC techs, plumbers, and general contractors working in tight spaces rely on extensions like this to drive fasteners where a standard driver cannot reach directly.

This extension is suited for residential and commercial applications where depth or clearance limits direct driver access. It works with drill bits, nut drivers, screwdriver bits, and other 7/16-inch hex shank accessories. Common install scenarios include driving fasteners inside electrical panels, duct flanges, wall cavities, and mechanical equipment frames. The universal hex shank fit makes it compatible across a broad range of cordless impact drivers and drills from multiple manufacturers.

Key Features

• 12-inch length provides extended reach in deep or confined spaces
• 7/16-inch hex shank fits any standard 7/16-inch hex shank tool or accessory
• Impact-rated construction for maximum durability under high-torque conditions
• Hand-release Quik-Lok mechanism allows fast accessory changes without tools
• Universal fit across cordless impact drivers and drills accepting 7/16-inch hex shanks
• Sold as a 2-piece package

Compatibility

Designed for use with any tool or accessory featuring a 7/16-inch hex shank, including drill bits, nut drivers, and screwdriver bits used with cordless impact drivers and drills.

Installation Notes

Installation does not require special tools — insert the 7/16-inch hex shank accessory into the Quik-Lok chuck until it locks, and press the collar to release. Confirm the accessory is fully seated and locked before applying torque. Inspect the extension for wear or damage before use in high-cycle impact applications. Follow applicable workplace safety guidelines when working in energized or pressurized systems.

Technical Specifications

• Length: 12 inches
• Shank Size: 7/16 inches hex
• Impact Rated: Yes
• Package Quantity: 2 per package
• Weight: 2.6 pounds
• Unit of Measure: EA

Standard Information

• Brand: MILWAUKEE ELECTRIC TOOL CORP
• Manufacturer Part Number: 48-28-1040