Definition

1. Noun:
   • A type of pliers: "pump-type pliers" refers to a specific design of adjustable pliers. The defining feature is a mechanism, often involving a pinned pivot point that can be repositioned along a series of grooves or notches in one handle, allowing the jaws to be adjusted to grip objects of various sizes. The name "pump-type" comes from the pumping or sliding action used to adjust the tool's opening width.

Usage Examples

• Noun:
  • I need the pump-type pliers to loosen this large, rusty nut.
  • The adjustable jaw on these pump-type pliers makes them very versatile for different tasks.

Advanced Usage

• The term is often used in hardware and mechanical contexts to distinguish this adjustable design from other types like slip-joint pliers, locking pliers, or fixed pliers.
  • For plumbing work, many professionals prefer pump-type pliers over a standard wrench.

Variants and Related Words

• Pliers (n): The general category of hand tools used for gripping, bending, or cutting.
• Adjustable pliers (n): A broader term that includes pump-type pliers and other designs with adjustable jaws.
• Water pump pliers (n): A common synonym, as this tool is frequently used for working on plumbing fixtures and water pump nuts.
• Groove-joint pliers (n): Another synonym describing the grooved channel that allows for adjustment.

Synonyms

• Water pump pliers
• Groove-joint pliers
• Adjustable pliers (general term)

Related Phrases

• To adjust the pump-type pliers: To slide the pivot point to change the jaw opening.
  • You must fully open the jaws before you can adjust the pump-type pliers to a new size.

Noun

1. a type of pliers