The Milwaukee 48-22-7001 Basin Wrench is a plumbing wrench built for removing and installing fasteners in under-sink spaces. This is a basin wrench designed for faucet nuts, basin mounting hardware, and other hard-to-reach fasteners behind and below sinks. Model Number 48-22-7001. If you do plumbing repairs, faucet replacements, or sink swap-outs, this tool solves the usual problem of not having enough room to get a regular wrench where it needs to go.

The big selling point here is access. Milwaukee gives this basin wrench a spring-loaded forged jaw that pivots up to 90 degrees, which lets the head line up with awkward fasteners in tight cabinets and against sink bowls. The jaw capacity is up to 1-1/4 inches, so it is sized for common under-sink plumbing hardware. In plain terms, that means less fighting for position and fewer times pulling the tool out just to reset your angle.

The telescoping handle is another feature that matters in the real world. It adjusts from 10 inches to 17 inches, so you can keep it compact when space is limited or stretch it out when you need extra reach deeper inside the cabinet. That extra reach is useful when supply lines, drains, disposals, and shutoff valves crowd the work area. Instead of bringing multiple specialty tools, you can adapt the same wrench to the space you are working in.

Milwaukee also did more with the handle than most basin wrenches in this class. The handle is shaped for one-handed use and better comfort, which helps when you are working overhead or at odd angles under a sink base. It is also ratchet-ready for added speed and torque, and the through-hole design lets you insert a screwdriver for more leverage when a nut is stuck. Those are not gimmicks. They directly help when you run into old hardware that has not moved in years.

Durability matters on plumbing hand tools because they get twisted hard and used in less-than-clean conditions. Milwaukee calls out a forged, hardened jaw with an optimized tooth pattern for grip and wear resistance. The point is simple: the head needs to bite and hold without slipping when you are trying to break loose a stubborn basin nut. A basin wrench that slips wastes time fast, especially when your hands are already jammed into a cramped cabinet.

For jobsite practicality, this is the kind of tool that earns its spot by handling the ugly part of the work. Under-sink fastening is rarely comfortable, and access is usually the whole battle. The long reach, pivoting jaw, and leverage-friendly handle are all aimed at that exact problem. If you do service plumbing, punch-list repairs, bathroom remodels, or even occasional faucet replacements at home, those features are what make the difference between a quick swap and a half-hour wrestling match.

The Milwaukee 48-22-7001 Basin Wrench is best for plumbers, maintenance techs, remodelers, and serious DIY users who work on sink installations and faucet service. If you only need a general adjustable wrench, this is not that tool. But if you need a dedicated plumbing wrench for basin swap-outs and tight-space fastening, this one is purpose-built for the job and a lot more versatile than the old fixed-handle basin wrenches most people are used to.

A real fix for miserable under-sink work

The Milwaukee 48-22-7001 Basin Wrench takes one of the most annoying plumbing jobs and makes it a lot more manageable.

• Who it's for: Plumbers, remodelers, maintenance crews, and homeowners who actually do faucet and sink work instead of calling someone every time.
• Why it stands out: The telescoping handle, 90-degree pivoting jaw, and ratchet-ready design give you more access and more ways to apply torque than a basic old-school basin wrench.
• Worth knowing: This is a specialty plumbing wrench, not a general-purpose adjustable wrench. If your work happens under sinks, that is exactly why it is worth having.

• What is the maximum capacity of this basin wrench? The maximum jaw capacity is 1-1/4 inches.
• Does the handle adjust in length? Yes. The telescoping handle adjusts from 10 inches to 17 inches.
• Can the jaw pivot for tight spaces? Yes. The jaws pivot up to 90 degrees for better access in cramped under-sink areas.
• Is there a warranty? Yes. It has a Limited Lifetime Warranty.