socket wrench

Thân thiện

A mechanic uses a socket wrench to tighten a bolt on a car engine.

Definition

Noun: A socket wrench is a hand tool consisting of a handle (often a ratcheting handle) designed to accept and drive interchangeable, hollow, cylindrical attachments called sockets. These sockets fit over the heads of fasteners like nuts and bolts, allowing for efficient tightening or loosening.

Usage

A socket wrench is used to apply torque to turn fasteners. Its key feature is the detachable socket, which allows one handle to be used with many different socket sizes to match various fastener heads. - You'll need a socket wrench to remove the lug nuts from the car tire. - The mechanic selected a 10mm socket for his socket wrench to access the bolt in the tight space.

Advanced Usage

• Ratchet Mechanism: Most modern socket wrenches feature a ratcheting handle, which allows the user to turn the fastener continuously without removing and repositioning the tool after each short turn. This is often referred to simply as a "ratchet."
  • Use the switch on the ratchet to change the direction for tightening or loosening.
• Drive Size: The square drive on the handle (where the socket attaches) comes in standard sizes (e.g., 1/4", 3/8", 1/2"), which determines the size and torque capacity of the sockets it can use.
  • For automotive work, a 1/2-inch drive socket wrench is commonly used for high-torque applications.

Variants and Related Words

• Ratchet (Wrench): Often used synonymously with "socket wrench," though technically it refers specifically to the ratcheting handle component.
• Socket: The removable, hollow cylinder that fits onto the fastener. It is always used in conjunction with a handle (e.g., socket wrench, impact driver).
• Combination Wrench: A non-ratcheting, double-ended wrench with fixed open and box ends. This is a different, though related, type of hand tool.
• Torque Wrench: A specialized socket wrench that measures and applies a specific amount of torque to a fastener.

Synonyms

• Ratchet
• Ratchet wrench

Related Phrases and Tools

• Socket Set: A collection of sockets of various sizes and types (e.g., standard/metric, deep, shallow) that are used with one or more socket wrench handles.
  • A good mechanic's toolkit always includes a comprehensive socket set.
• Breaker Bar: A long, non-ratcheting handle used with sockets to apply greater leverage, often to loosen very tight fasteners before using the ratcheting socket wrench.
  • He used a breaker bar with the socket to crack the rusted bolt loose.

Học thuật

Noun

1. a wrench with a handle onto which sockets of different sizes can be fitted