

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The MILWAUKEE TOOL 49-66-6705 is a 10-inch socket extension designed for use with socket sets in professional and trade applications. It extends reach inside tight spaces, deep cavities, and hard-to-access fastener locations where a standard socket alone cannot seat properly. At 0.56 pounds and measuring 9.84 inches in body length with a 0.74-inch profile width, the extension is compact enough to maneuver in confined areas while maintaining the rigidity needed for consistent torque transfer. Licensed electricians, plumbers, HVAC technicians, and general mechanical contractors use extensions like this daily on equipment service calls and installation work.
This socket extension is suited for residential and commercial service environments where technicians encounter recessed fasteners on HVAC equipment panels, electrical enclosures, plumbing fixtures, and mechanical assemblies. The 10-inch overall length gives added clearance over shorter 3-inch or 6-inch extensions when working around obstructions. It is sold individually, making it a practical single-piece addition to an existing drive set.
Designed as an OEM-style replacement extension for use with compatible socket drive sets in professional trade and mechanical service applications.
Socket extensions are installed and removed by hand as part of a socket drive assembly. Always ensure the extension is fully seated on both the drive tool and the socket before applying torque. Inspect the extension for cracks or deformation before each use. Do not use socket extensions with impact drivers unless the extension is specifically rated for impact use.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!