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Ampco

Ampco W-1149 18 in Nickel Aluminum Bronze Monkey Wrench

SKU CH-1NPV-BZ60F

Adjustable 18 in monkey wrench with 3 in jaw capacity, non-magnetic nickel aluminium bronze construction for corrosion resistance and an I-beam handle for comfortable grip

  • TypePipe Wrenches
  • Non-sparking nickel aluminium bronze for hazardous areas
  • 18 in length gives extra leverage on large fittings
  • 3 in jaw capacity handles big pipe and nuts
  • I-beam handle distributes force for comfortable grip
  • Corrosion-resistant material extends service life in wet conditions

Essential Adjustable Wrench

The Ampco W-1149 is an 18 in nickel aluminum bronze monkey wrench built for maintenance tasks that require precise adjustment. Its 3 in jaw capacity suits a range of fastener sizes. The non-magnetic, corrosion-resistant alloy makes it suitable for environments where standard steel tools could cause interference or degrade quickly.

I-Beam Handle and Smooth Jaws

An I-beam handle profile gives a comfortable grip that reduces hand fatigue during extended use. Both the frame and jaws are machined from the same nickel aluminum bronze, so the smooth jaw faces engage workpieces without marring softer materials. The manual adjustment mechanism operates cleanly without the magnetic attraction that complicates work near sensitive instruments.

Non-Magnetic Bronze Limitation

The nickel aluminum bronze construction trades maximum clamping force for non-magnetic and corrosion-resistant properties, so it is not intended for high-torque breaking of seized fasteners. Users who need maximum leverage on rusted pipe or heavy structural bolts should select a hardened steel wrench instead. The smooth jaws also limit grip on rounded or heavily corroded surfaces.

Highlights

  • Non-sparking nickel aluminium bronze for hazardous areas
  • 18 in length gives extra leverage on large fittings
  • 3 in jaw capacity handles big pipe and nuts
  • I-beam handle distributes force for comfortable grip
  • Corrosion-resistant material extends service life in wet conditions

Specifications

BrandAMPCO
TypePipe Wrenches

Questions about this item

How wide can the 3 in. jaw capacity open on the W-1149 monkey wrench?

The smooth jaws open to a full 3 in. capacity, letting you grip pipes and fittings up to that diameter.

What clearance does the 18 in. I-beam handle need in a toolbox or on a pegboard?

The overall length is 18 in., so allow at least that much linear space plus a little extra for the jaw width.

How do I set the jaw on this adjustable wrench without rounding the fastener?

Turn the knurled adjuster until the smooth jaws sit snug against the flats, then apply force on the fixed jaw side — not the movable one.

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