The Use Principle of Screwdriver

The screwdriver is a tool that is used to twist the screw to force it in place, usually with a thin wedge, with a minus sign and a positive sign. There is a common hex screwdriver, including hexagonal screwdriver.
The screwdriver is used to pry the paint cover, which used the working principle of the lever. The greater the distance from the power point to the fulcrum more effort, so long screwdriver is more effort than the short screwdriver.
When the screwdriver is used to screw the screw, it use the axle of the working principle. When the wheel is bigger and more labor-intensive, so the use of coarse screwdriver is more effort than the use of fine screwdriver.

What Are The Cutter Knife's Advantage?

Cutter knife belongs to common hand tools, blade material is high-quality alloy steel, the handle use a large area of plastic package, and automatic locking function, work is more safe and efficient; Unique blade design avoid the blade edge and scabbard friction, ensure that the blade sharpness, reduce the blade shaking. It has a lot of advantages.
The first long life, the kind of good quality knife has longer life than the market average tool life, its blade uses thick design, and the knife shell is high-quality alloy, can be cut in a variety of environments.
The second comfortable grip, the kind of knife is not only the shape of the atmosphere, and not rust, can be long to maintain beautiful. Cutting use is also more simple, can save effort; It is fully in accordance with ergonomic design, comfortable grip.
Third use safe, The price of the cutter knife is cheap, and the use of security. All materials are environmentally friendly materials, Especially for the use of more frequent types of work, the use can effectively improve the safety index.
The fourth cutting function is strong, the blade is not easy to break, and this knife is unusually sharp, cutting function is very strong.

How to Use The Caulking Guns?

A caulking gun is an industrial device, is a tool for injecting a liquid sealing material into a joint gap or groove.
When we use, the user holds the handle and pulls back the trigger. The pin of the trigger moves forward the actuator. The actuator engages the piston tightly and pushes the piston forward. The piston head opens the bottom of the caulk tube. Fix the caulking tube by filling the ring at the end of the gun.

The Main Points of Choosing The Wrench

The use of wrenches is very wide, some of the daily repair of machinery, steel tube, pipelines and other industries construction, we can see them. Different types of wrenches can handle the installation and removal of bolts in different situations, but many people will not choose, we need to know about it.
First, choose the right wrench
Only the right wrench can help the user to work better. The appropriate wrench refers not only to the appropriate type of wrench, but also to the fit size. Users should be based on their actual needs, or consult the seller before buying.
Secondly, the arm design should be reasonable
The reason why the wrench can shake the bite of the tight thread is that it uses the lever principle. Therefore, when the arm design is reasonable, the user can more easily complete the mechanical maintenance and other work, and no longer need too much effort.
Finally, it is important to make the raw materials
The raw material for making the wrench is also one of the elements of the wrench. If the raw material of the wrench is made of soft nut material, it may cause the wrench to be deformed or worn. Therefore, only consider the type of force to buy a good quality wrench.

What Are The Classification of The Vise?

The vise is the must-have tool for the family, plays an important role in our daily life, and it is often easy to cut off what humans can not cut at all.
Distinguished from the manufacturer, commonly used vise can be divided into German and American. German clamp is also known as European clamp, smooth appearance, small size, light weight, pay attention to clamping function, can be applied to a variety of complex occasions. While the American clamp is focused on the cut function, jaws are sharp, and the feel in the hand is better.
Ordinary vise is used in daily life of the pliers, generally for ordinary family personal use, and telecommunications clamp is mainly used for live operation, the outside will be wrapped with a layer of insulation, and affixed with a prominent anti-electric shock signs, the general use of power supply.

How to Choose A Good Quality Hand Vise?

Hand vice is simple and easy to use the operating products, is necessary tools for electrician, mechanic and carpentry, but many people know little about their purchase points. Let's take a look.
1.look at the material
Material can determine the life, for this high operating strength tool, even more so. So in the purchase of products, we must carefully read the product manual, the general good vise is made of high-speed steel or tool steel, this steel is often wear and high strength.
2.look at the vice jaws
Vice jaws are the most critical parts of the entire vise system, it is responsible for almost all of the shearing force, if the jaw material, grinding is not in place, easy to operate in the process of chipping and roll edge phenomenon, so consumers at the time of purchase, in addition to the material of vice jaws, but also try to touch the edge with the hand, if the smooth and no gap, the blade of the substrate has a certain tilt angle, indicating that the grinding process qualified.
3.look to turn the vice
In the course of the operation, the vise rotation is the most normal thing, and if the product rotation coaxial is not high or too tight, which will delay the work efficiency, so customers must personally turn the product, look at the elastic and coaxial performance.