The Milwaukee Faucet Swap-Out Wrench, model 48-22-7100, is built for plumbers, maintenance techs, remodelers, and serious DIY users who need better access under sinks during faucet replacement work. This is a basin wrench designed for faucet and sink swap-outs in tight spaces. Its main advantage is simple: the long, slim body reaches mounting hardware underneath faucets without forcing your hand into impossible positions.

Milwaukee designed this tool around the stuff that slows faucet jobs down. The wrench body fits common 2, 3, 4, and 6-tab basin mounting nuts, while the included inserts handle common 5/8 inch, 3/4 inch, 7/8 inch, and 15/16 inch nuts used on supply lines and related plumbing hardware. There is also a 7/16 inch deep socket end for common single-hole faucet mountings and toilet bolts, plus a basket strainer wrench that works on 4-slot strainer baskets and tub drains. In practical terms, that means fewer trips back to the bag and less time fighting cramped hardware one fastener at a time.

The long handle matters here. At 13.8 inches overall, the Milwaukee Faucet Swap-Out Wrench gives you reach where short plumbing tools come up short, especially behind a sink basin or against cabinet walls. The open slot in the wrench body lets you place it over existing supply lines instead of disconnecting more than you need to. If you have ever tried to turn a faucet nut while dodging hoses, shutoff valves, and the underside of a sink, that feature alone makes sense fast.

This tool is also set up to deliver more turning force when old hardware does not want to move. The long insert is 3/8 inch ratchet-ready for faster turning and better breakaway torque, and the through-hole design is screwdriver ready for added leverage. Milwaukee also calls out a wrench bolster for maximum leverage. That combination makes the tool more useful on corroded fasteners and older plumbing connections where hand strength alone is usually not enough.

Retention and durability are not afterthoughts. Adjustable ball detents in the wrench body keep the inserts seated during use, and Milwaukee notes they can be tightened with a 3/32 inch hex key if you want a stronger hold over the life of the tool. Laser-etched size callouts help you grab the right insert faster, which matters when you are working in a dark vanity cabinet and do not want to waste time second-guessing sizes.

Because this is a hand tool, there is no battery platform or charger to think about, but there is still a useful system angle: it works with standard hand-force operation, a screwdriver through-hole, and a 3/8 inch ratchet on the long insert. That flexibility makes it easier to adapt to the hardware in front of you instead of forcing a single approach on every job.

If you do occasional faucet replacements, this wrench gives you better access than a pile of generic tools. If you do plumbing work regularly, it is the kind of purpose-built swap-out tool that saves time on every install. It is especially useful for faucet replacement, sink repairs, supply line service, basket strainer work, and other under-sink fastening jobs where access is the real problem, not just torque.

A Smart Fix for a Miserable Job

The Milwaukee Faucet Swap-Out Wrench takes one of the most awkward plumbing tasks and makes it a lot more manageable.

• Who it's for: Plumbers, maintenance crews, remodelers, and homeowners who do their own faucet and sink work.
• Why it stands out: The long reach, multi-fit inserts, and ratchet-ready design attack the real problem under sinks, which is access first and torque second.
• Worth knowing: This is a purpose-built hand tool, not a universal answer for every plumbing fastener, but for faucet swap-outs and common under-sink hardware it is a lot more useful than a generic basin wrench.

• What kind of tool is this? It is a basin wrench designed for faucet and sink swap-out work in tight spaces.
• What nut sizes can it handle? The included short inserts work on 5/8 inch, 3/4 inch, 7/8 inch, and 15/16 inch nuts, and the wrench body fits common 2, 3, 4, and 6-tab basin mounting nuts.
• Can it be used with a ratchet? Yes. The pronged retainer end of the long insert is 3/8 inch ratchet-ready.
• Will it work on basket strainers? Yes. The long insert includes a basket strainer wrench for 4-slot strainer baskets and tub drains.
• Does it have a warranty? Yes. Milwaukee lists a Limited Lifetime Warranty for this tool.