locking pliers: meaning, definition, pronunciation and examples

Intermediate (B2/C1)
UK/ˈlɒk.ɪŋ ˈplaɪəz/US/ˈlɑː.kɪŋ ˈplaɪ.ɚz/

Technical/Workshop; Informal DIY

My Flashcards

Quick answer

What does “locking pliers” mean?

A hand tool with adjustable jaws that can be locked in a closed position, applying constant pressure without the user needing to maintain grip.

Audio

Pronunciation

Definition

Meaning and Definition

A hand tool with adjustable jaws that can be locked in a closed position, applying constant pressure without the user needing to maintain grip.

A versatile tool, often with a compound-lever or over-centre mechanism, used for gripping, clamping, or turning stubborn fasteners where a constant, strong hold is required.

Dialectal Variation

British vs American Usage

Differences

UK English prefers the term 'mole grips' as a common generic equivalent (originating from a popular brand, 'Mole Wrench'). The term 'locking pliers' is understood but less frequent. US English predominantly uses 'locking pliers', with 'Vise-Grip' as a common genericized trademark.

Connotations

Both terms are neutral in technical contexts, but 'mole grips' in the UK carries the same informal, practical connotation as 'locking pliers' does in the US.

Frequency

In the US, 'locking pliers' is the standard descriptive term. In the UK, 'mole grips' is more frequent in everyday speech, while 'locking pliers' is found in more formal technical writing or catalogues.

Grammar

How to Use “locking pliers” in a Sentence

Use [locking pliers] to VERB (e.g., to clamp, to remove)VERB [locking pliers] (e.g., adjust, release, lock)VERB with [locking pliers]

Vocabulary

Collocations

strong
adjust theset ofpair ofrelease the lever on thejaws of the
medium
use thehand me thetighten withclamp with
weak
stronghandybrokenrusted

Examples

Examples of “locking pliers” in a Sentence

verb

British English

  • I need to mole-grip this fitting before it slips.

American English

  • He vise-gripped the stripped bolt to get it out.

adjective

British English

  • The locking-plier mechanism is jammed.

American English

  • It's a locking-plier feature you'll use often.

Usage

Meaning in Context

Business

Rare, except in procurement or inventory for hardware/tool suppliers.

Academic

Occurs in engineering, manufacturing, or vocational training texts describing tools and fastening methods.

Everyday

Common in DIY, automotive repair, and general household maintenance conversations.

Technical

Standard term in tool manuals, engineering workshops, and trade catalogues for a specific class of hand tool.

Vocabulary

Synonyms of “locking pliers”

Strong

mole grips (UK)Vise-Grip (US, proprietary)

Neutral

locking wrenchgrip pliers

Weak

clampgripping tool

Vocabulary

Antonyms of “locking pliers”

slip-joint pliersneedle-nose pliersnon-locking pliers

Watch out

Common Mistakes When Using “locking pliers”

  • Calling all pliers 'locking pliers'.
  • Using plural verb form incorrectly with the singular tool concept (e.g., 'This locking pliers are...' vs 'This pair of locking pliers is...').

FAQ

Frequently Asked Questions

Vise-Grip is a famous brand name of locking pliers. In the US, 'Vise-Grip' is often used generically (like 'Kleenex' for tissues). Technically, not all locking pliers are Vise-Grips, but the term is frequently understood to mean the same tool.

Their primary advantage is the locking mechanism, which allows them to apply and maintain constant, hands-free pressure. This frees the user's hand, provides immense clamping force, and is excellent for gripping stripped or rounded fasteners.

While designed for temporary clamping, they can be left in place for extended periods. However, for professional, long-term applications, dedicated C-clamps or bar clamps are preferred as they distribute pressure more evenly and are less likely to damage the workpiece.

Usually not. 'Mole grips' is a genericized trademark and is considered informal. In formal UK technical documentation, 'locking pliers' or 'self-locking pliers' would be the preferred descriptive terms, though 'mole wrench' may also appear.

A hand tool with adjustable jaws that can be locked in a closed position, applying constant pressure without the user needing to maintain grip.

Locking pliers: in British English it is pronounced /ˈlɒk.ɪŋ ˈplaɪəz/, and in American English it is pronounced /ˈlɑː.kɪŋ ˈplaɪ.ɚz/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • Locked on like a pair of Vise-Grips (US informal, meaning tenaciously attached or focused).

Learning

Memory Aids

Mnemonic

Imagine a plumber locking a door with a special key—but the 'door' is a pipe and the 'key' is a tool that LOCKs its grip. LOCKing PLIERS.

Conceptual Metaphor

TOOL AS AN EXTENSION OF THE HAND WITH A MEMORY (it 'remembers' the setting and maintains pressure).

Practice

Quiz

Fill in the gap
When the bolt head was stripped, the only tool for the job was a sturdy pair of .
Multiple Choice

In British English, what is a common generic term for 'locking pliers'?