Correct Answer - Option 3 : Torque wrench
Explanation:
Torque wrench:
Torque wrench comes in the category of spanner and wrenches. Spanner and wrench are used to offer a mechanical grip for applying the torque to rotate the object such as nuts and bolts. Spanner is the type of adjustable wrench. It comes in 2 types namely basin wrench and tap wrench with a T bar. They are typically made up of chromium-vanadium alloy steel, chrome-plated to protect against corrosion. Chain pipe wrenches, cross rim wrenches, die handle wrenches, folding wrenches, hex key wrenches, hook wrenches, pipe wrenches, strap wrenches, and tap wrenches are some of its types.
- A torque wrench is usually in the form of a socket wrench with a special internal mechanism.
- It is employed to impart an appropriate amount of torque to a fastener.
- It is essential in many cases during the assembly of precision mechanisms.
- It is used where the tightness of screws and bolts is crucial.
- It allows setting the torque applied to the fastener to meet the needs of a particular type of application.
- It uses torque as the proxy for bolt tension.
Extension bar:
An extension bar is a long and solid piece of metal piping that is used to extend the reach of a socket wrench. These tools are often used by mechanics and other professionals who work with stiff and rusted bolts in compact spaces. Commonly, these tools help reach bolts that are in confined and awkward spaces. These extension bars fit between a socket bit and a wrench and allow full torque to be transmitted along its length.
Along with the sockets, these bars are also used with spark plug sockets that are an integral part of the ignition system. When these socket plugs require periodic replacement and need to be unscrewed, these extension bars are used.
Ratchet:
When the gadgets or wheels are needed to be fastened, the ratchets are used. They are designed to reach areas in mechanics that are narrow and they can fix and tighten the nuts and bolts of anything with ease. This tool consists of a case with several teeth. When the ratchet is moved forward, one tooth keeps the pawl engaged with gear or wheel, thus moving the wheel forward until the next tooth is reached, then releases it to make room for the next tooth of the ratchet to engage and so on. The ratchet socket set is integral to every electronic and mechanical device. From your air conditioners to cell phones, they play a vital role in most of the setups that you use every day.
Speeder handle:
A speed wrench is used to remove fasteners at a quicker pace than a traditional wrench, which requires the user to remove and reposition the tool after extending it through its range of motion.
A speed handle that includes a ratchet drive on the working end. A conventional socket can be attached to the mounting end of the ratchet drive. The speed handle is especially useful in areas where there is very little room for operating a conventional wrench or conventional ratchet wrench. Speed handles used for ease of rotation of a socket being used to loosen or tighten bolts or nuts.
