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Question

Difficulty: EasyGripping and Holding Tools

Which gripping tool features an adjusting screw in the handle and a release lever, allowing it to clamp and lock securely onto an object without continuous hand pressure?

  1. A
    Slip-joint pliers
  2. Locking pliersAnswer
  3. C
    Tongue-and-groove pliers
  4. D
    Needle-nose pliers

Answer

Locking pliers
Locking pliers (commonly known as Vise-Grips) are designed with a threaded adjustment screw at the base of the handle to set the jaw opening and clamping pressure, along with an over-center toggle mechanism and release lever that maintains a firm clamp without continuous manual grip pressure.

Step-by-Step Solution

1
Identify the distinct mechanical features specified in the question.
The tool includes an adjustment screw on the handle, a release lever, and a toggle locking mechanism.
These physical components define the operation and appearance of locking pliers.
2
Evaluate the gripping and holding function against standard shop hand tools.
While most pliers require manual squeeze pressure throughout the task, locking pliers lock over-center to hold clamping pressure independently until manually released.
The compound lever action provides continuous high clamping force hands-free.

Key Concept

Locking pliers utilize an adjustable screw mechanism and compound lever toggle to lock firmly onto objects without requiring continuous hand pressure.
Estimated Time:45s
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Topics

Gripping and Holding Tools

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