Which one has higher hardness, chromium vanadium steel or rail steel?
In some places with small space, the hexagon socket screws and wrenches cannot be kept in a straight line, and the straight hexagon socket wrench cannot be operated, so a ball hex socket wrench is required. As long as it is within the included angle range, the ball hexagonal wrench can tighten the screws at an inclined angle, and the British T-shaped ball head hexagonal wrench exerts force on the screws through torque, which greatly reduces the user's force intensity. It is an industrial An indispensable and powerful tool in the manufacturing industry. Commonly used in pump valve industry, machinery industry, etc.
Not only that, the British T-shaped ball head hexagonal wrench also has the following advantages: simple and lightweight; there are six contact surfaces between the hexagonal screw and the wrench, which is fully stressed and not easily damaged; it can be used To tighten screws in deep holes; the diameter and length of the wrench determine its twisting force; can be used to tighten very small screws; easy to manufacture and low cost; both ends of the wrench can be used.
Wire pliers, also known as vise, flat-nose pliers, and comprehensive pliers, are a tool that can cut off hard and thin wires. There are different types. It is commonly used in crafts, industry, and life.
It is used to bend and twist cylindrical metal parts and cut metal wires. Its side cutting edge can also be used to cut thin metal wires. There are two types of surface: black or chrome plated and with plastic cover. Length (mm): 160, 180, 200.
Material: nickel-chromium alloy steel, chromium-vanadium alloy steel, high carbon steel, ductile iron.
Generally, wire cutters on the market are divided into two grades: medium and high. The so-called grade division is not due to the quality of the wire cutters, but to the material used to make the wire cutters. Different grades appear. Generally, wire cutters can be made of four materials: chromium vanadium steel, nickel-chromium steel, high carbon steel and ductile iron. Chromium vanadium steel and nickel-chromium steel have high hardness and good quality. Generally, wire cutters made of this material can be classified as high-grade wire cutters. High-carbon steel is relatively lower-grade. Wire cutters made of ductile iron have the highest quality. times, the cheapest price.
The price difference between the three grades of wire cutters is quite large. The low market price ranges from 7 to 9 yuan, while the high ones can go as high as 20 yuan to 30 yuan a piece.
The tape measure is the most commonly used measuring tool in people's daily lives, especially in construction and decoration. Of course, it is also one of the essential tools for the home. It includes Feng Shui ruler, Wen Gong ruler, fiber tape measure, tape measure, waist circumference ruler and so on.
According to its main types, tape measures can be divided into two categories: steel tape measures and fiber tape measures (the tape measures we see every day). Many people say they are cloth rulers and rulers (both rulers and clothing measuring rulers). fall into this category).
A screwdriver, a common tool used to turn screws and force them into place. It usually has a thin wedge-shaped head that is inserted into a slot or notch in the head of the screw. There are two common types of screwdrivers: flat-blade and cross-blade.
Compared with the slotted screwdriver, the Phillips screwdriver has better resistance to deformation. The Phillips screwdriver is more resistant to deformation and generally rotates clockwise. Although there are many specifications of Phillips screwdrivers, most of them are universal.