[BASIC HANDTOOLS] WHAT IS A WRENCH? USES AND TYPES OF WRENCH ON THE MARKET
- 20 Feb, 2023
In assembly and repair activities, wrenches are an indispensable tool. With the advantages of being compact and convenient, people can use wrenches to perform many operations. So what is the function of a wrench ? What types of wrenches are there? Let's find out in the article below:
I. What is a wrench? Structure of a wrench
II. Uses of wrenches
III. Common types of wrenches on the market
IV. Buy genuine wrenches at good prices at Phu Thai Tech
I. What is a wrench? Structure of a wrench
A wrench is a hand tool that holds and rotates to tighten or loosen nuts, bolts, threaded parts, etc. The structure includes a wrench body for holding and operating and two wrench heads for placing in the position of bolts, belts, etc. that need to be loosened. The long, sturdy wrench body is designed with a compact size to make holding and operating easy and convenient.

Wrenches are indispensable tools not only in household repairs but also in manufacturing and processing industries, mechanical repair shops, machinery or car repair garages...
Wrenches are usually made from super hard chrome-plated steel, which is durable and ensures that they can withstand great force during tightening and twisting. Wrenches must be made from good materials to avoid rust or warping during use.
The size of the wrench is expressed in whole numbers, which is the size of the wrench head in mm. There are many different sizes of wrenches, so you can buy each size individually according to your needs or buy a set with full sizes.

II. Uses of wrenches
Nowadays, with diverse designs, wrenches meet many needs in repair and assembly activities of many industries:
- Tighten and screw nuts and bolts of machinery and equipment
- Remove or open pipes or smooth parts with no grip.
III. Common types of wrenches on the market
Open-end wrench : This is a type of wrench with a C-shaped open head design, and is also the most common type, used for positions with limited contact space. When using, just choose the appropriate size, place the wrench head in the position to be tightened, and open to operate. The advantage of this type of wrench is that the fixed jaw head limits slipping, ensuring stability when operating.

Ring head wrench : With this type of wrench, the wrench head is designed in a closed circular shape in many sizes to fit many different types of screws. The advantage of this type of wrench is that the force of the operation will act evenly on the entire bolt position, so it will not deform the nut, suitable for positions that require strong force.
The ring head can be designed in line with the wrench body or diagonally to create clearance when used. The wrench can be designed with 2 ring heads or 1 ring head combined with 1 mouth head depending on the user's needs.

Rat-tail wrench : Rat-tail wrench has only 1 round head and 1 long, tapered handle. This wrench is specialized for tightening bolts, locks, screws in narrow, hidden and difficult-to-operate locations such as molds, inside machines and equipment.
Wrench : A wrench is a special type of wrench, with a long, sturdy handle attached to a chuck with an opening and closing mechanism that can change the size of the chuck. Therefore, a wrench can be used for many different bolt sizes.
When using, just loosen the clamp pin, place it in the position to be operated, then tighten the clamp to fix the wrench and then tighten and turn. Wrenches are also quite popular thanks to their flexibility in changing the clamp size.

Belt/chain wrench : Belt/chain wrench has a steel handle, gear design and is attached to a wire/chain with adjustable length to fit many pipe sizes. Belt/chain wrench is used to open and close pipes, large round objects with no grip points.
Belt/chain wrenches are widely used in repairing water pipes, oil pipelines, and large industrial machinery.


Above is basic information about wrenches, structure and how to use the types of wrenches on the market. Hopefully, with the information we provide, it will help you choose the type of wrench that suits your needs.
IV. Buy genuine wrenches at good prices at Phu Thai Tech
PHU THAI TECH is proud to be the leading distributor of genuine high-end hand tools in Vietnam with more than 500 world famous brands.
PHU THAI TECH has a full range of wrenches from the world's leading hand tool brands.
If you want to find wrench products in particular, and hand tools in general with genuine quality as well as the best prices in Vietnam, PHU THAI TECH will be your destination. Not only that, PHU THAI TECH also has a convenient Eshop system and showroom system across all 3 regions with attractive promotional programs that take place regularly. Whether you want to shop online or offline, PHU THAI TECH can provide shopping opportunities that are hard to refuse.
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