Product drilling is a very common processing technology in hardware manufacturing, many people have their own ideas and understanding of drilling, but there are also some people in the product drilling for the choice of twist drill very distressed, in fact, as long as you can understand the applicability of drill, basically general material drilling can be perfectly conquered, Today Xiaobian to discuss with you is to teach you how to correctly choose a suitable for their own products of twist drill.

A very important characteristic of drilling is that different twist bits should be selected according to different materials. Twist bits are usually divided into two raw materials: high speed steel and hard alloy. The choice of twist bits should be based on the equipment you use and the processing material to determine which kind of raw material twist bit should be selected. For example, if you are a common hand drill drilling and the processing material may be plastic or iron sheet or some relatively easy to process materials, it is suggested that you can choose ordinary high-speed steel twist drill bit, but if you are a lathe drilling equipment or high precision CNC drilling, You can give priority to carbide bits or high quality HSS twist bits.

A very important difference between alloy twist bit and high-speed steel twist bit is that alloy bit is more suitable for the field of high precision machine drilling, because alloy bit has higher precision and higher concentricity. Only high precision CNC, numerical control, lathe and other fields can meet the concentricity requirements of alloy bit. The biggest drawback of alloy twist bit is that its toughness is very poor. If you drill by hand, it is difficult to grasp the concentricity of the alloy bit. When you drill by hand, the phenomenon of instability occurs. Then the alloy twist bit does not have enough toughness and it is particularly easy to break or break the knife.

Although HSS bits are not as hard as alloy bits, and indeed are not as good for some hard-to-cut materials, HSS bits are better suited than alloy twist bits for hand drilling. Although not as hard, the toughness is much stronger than that of alloy bits, and HSS twist bits are generally perfect for most metal materials. Just for some ultra-hard metal material is weaker than alloy twist drill.

Want to choose a suitable for their own twist drill first to understand some of their own conditions such as the use of drill equipment is what kind of CNC or hand drill or bench drill or lathe and so on equipment, in addition to understand the use of drill equipment, followed by the material of the product to be processed, Knowing the material of the product can help you to get the right twist drill bit from the manufacturer when you are looking for it.