Channellock 440 12-Inch Tongue & Groove Pliers
Channellock's classic 12-inch straight-jaw pliers, made in the USA. They open to 2.25 inches for pipes, fittings and big nuts, with teeth that bite at 90 degrees.
Quick verdict
Yes, if you want one big plier for sink traps, hose fittings and large nuts. The Channellock 440 is 12 inches long, opens to 2.25 inches and is made in the USA from high-carbon steel. It's heavy, adjusts with two hands, its teeth can mark finished fittings, and the listing we checked was sold by third-party sellers only.
- Best for:
- Plumbing and big nuts.
- Watch out:
- Third-party sellers only.
Amazon US listing and availability checked October 26, 2026. Prices and stock can change.
Reviewed October 12, 2026 · How we review
Part of our buying guide: Serrated or Smooth Jaws? Choosing Compact Pliers for Small Nuts and Pipes
Our Take
The 440 is the blue-handled plier plumbers and homeowners have used for decades. Channellock lists a 12-inch length, a 2.25-inch jaw capacity, laser-hardened 90-degree teeth and high-carbon US steel with a rust-resistant coating. The undercut tongue-and-groove joint keeps the jaw from slipping open under load. It's the tool for sink traps, hose fittings and anything round and large. It weighs about 1.6 pounds, so it's not a pocket tool, and adjusting it takes two hands compared with push-button designs. We haven't tested it ourselves. On Amazon the listing was sold only by third-party sellers when we checked, so look at seller ratings before you buy.
Specs (This Configuration)
- Length
- 12 in (Channellock)
- Jaw capacity
- 2.25 in (Channellock)
- Jaw
- Straight, laser-hardened 90° teeth (Channellock)
- Steel
- High-carbon US steel, rust-resistant coating (Channellock)
- Weight
- About 1.64 lb (Channellock)
- Made in
- USA (Channellock)
Best For
- Plumbing: sink traps, supply lines, fittings
- Large nuts and round stock
- A first serious pair of big pliers
Skip If
- You want one-handed push-button adjustment
- You need a compact tool
- You mostly work on small fasteners
What We Like
- Big 2.25-inch capacity
- Teeth that bite in both directions
- Made in the USA
What To Know
- Heavy for a plier
- Teeth can mark soft or finished surfaces
- Third-party sellers only on the listing we checked
Pros
- Proven design
- Rust-resistant coating
- Wide capacity
Cons
- Two-hand adjustment
- Marks finished fittings
- No Amazon.com offer when we checked
Alternatives
- Channellock 442 12-Inch V-Jaw — The same size with a V-shaped jaw that grips pipe in three places.View on Amazon
- KNIPEX Cobra XS — A tiny 4-inch water pump plier for tight spaces and your pocket.
Why PriceDropIQ Selected It
If you're only buying one big plier for the house, this is the one to get. It opens wide enough for sink traps and hose fittings, the teeth hold round parts without slipping, and it will last for decades. It's heavy and adjusts by hand, so pick a push-button plier if speed matters more.
Before You Buy
- Check the model: 440 is the 12-inch straight jaw
- Check the seller's rating
- Wrap finished fittings to avoid tooth marks
Frequently Asked Questions
What's the jaw capacity?
Channellock lists 2.25 inches for the 440.
What's the difference between the 440 and the 442?
Same length; the 442 has a V-shaped jaw that grips round pipe at three points.
Where is it made?
Channellock says it's made in the USA from high-carbon US steel.
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Reviewed October 12, 2026. Check the current offer, seller, availability, and shipping details on Amazon.
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Product photo by J.C. Fields (CC BY-SA 3.0). Full image credit