Slip-Joint (Adjustable) Pliers

The everyday adjustable pliers with a notched jaw, built to grip just about anything.

What is it?

Slip-joint pliers are the everyday tool many people know as channel-lock or water-pump pliers. An adjustable joint opens the jaws to grip round, flat, and tanged objects. The classic size (7 to 8 inch) is an all-purpose first purchase.

What is it used for?

  • Gripping and tightening odd round or flat items
  • Pulling, bending, and tightening
  • A general-purpose shop clamp

How to choose

Pick a jaw opening to match your hand and the largest thing you grip. A one-hand slip joint is more usable often. 7 or 8 inch length is the sweet spot.

Anatomy

Understanding the parts of a slip-joint (adjustable) pliers helps you use, maintain, and buy it with confidence.

  • Body: the main working portion of the tool
  • Working end: the part that contacts the material
  • Handle: the part you grip for control and leverage

Materials & construction

Quality slip-joint (adjustable) plierss are made from hardened, heat-treated steel (often chrome-vanadium or high-carbon) chosen for strength, edge retention, and resistance to wear and corrosion.

Safety & maintenance

  • Inspect the tool before use and replace any that are worn or damaged
  • Use the right tool for the job and apply controlled force
  • Store tools clean and dry to prevent corrosion
  • Wear appropriate eye protection for the work

Also known as

water pump pliers, channel-lock pliers