Bimetal hole opener is a kind of tool which is often used to process metal sheet or pipe of different materials. It consists of two different materials of metal. Generally speaking, one side is high speed steel with high hardness and good wear resistance, and the other side is stainless steel with good corrosion resistance. When using a bimetal hole opener, the teeth on the high speed steel side will first remove the coating or sheet from the material surface, while the stainless steel side will maintain the cutter's sharpness and shape.

The advantage of bimetal hole opener is that it can effectively reduce the wear and cutting force in the machining process, so that the work efficiency is higher, and can avoid the deformation and cracking of the workpiece surface. Because steel is usually harder than stainless steel, the cutter teeth on the HSS side can be easily cut to the center of the workpiece. And stainless steel side of the cutter teeth, can prevent the workpiece surface oxidation corrosion. This design allows the hole opener to perform well in a variety of materials, and it has the advantages of durability and longer life than a single material hole opener.

Bimetal hole openers are used in a very wide range. It can be machined in a variety of materials of complex shapes or sizes, such as holes in the shape of circles, squares, rectangles, hexagons, and a variety of materials of different thicknesses. Bimetallic openings can be used to process various metal materials, such as steel, stainless steel, aluminum, copper, brass, iron, titanium, etc. They are usually used in manufacturing industries, such as automobiles, aviation, construction, machinery, electronics and so on.

When using bimetal hole openers, it is necessary to understand their use and maintenance skills. First, a tool suitable for the material and aperture should be selected. Secondly, before use, the cutting edge of the tool must be checked for passivation or damage, and the necessary trimming. During the machining process, machining should be carried out in the correct sequence and speed to avoid over cutting or under cutting. Finally, after use, the tool should be cleaned and lubricated in time, and stored in a dry environment to avoid rust or moisture.

In short, bimetal hole opener is a very practical tool, its advantages lie in high efficiency, durability, flexibility and other characteristics, and can be used for different types of material processing. In the selection and use, attention should be paid to the selection of suitable cutting tools and correct processing methods, in order to obtain good results and life.