What is the difference between HSK hilt and traditional hilt?

HSK tool holder is the key tool for high-speed cutting. HSK hollow short taper shank technology has been widely used all over the world since it appeared. It is understood that some users in Europe and North America have encountered some problems when using HSK hilts. The main reason for these problems lies in their improper choice of materials for HSK hilts. DIN standard only specifies the geometric shape of HSK handle, but does not specify the materials used. Therefore, almost all HSK shanks produced by tool suppliers are completely produced with reference to the traditional 7: 24 taper shanks. The "hollow" of HSK hollow short taper shank itself illustrates a potential problem: the axial section is very small, which is obviously the weak link of HSK hollow short taper shank.

The traditional tool handle is usually made of alloy steel, and then the surface is quenched or treated to obtain a hard and wear-resistant surface and a tough core (HRC 32 ~ 36). These heat treatment processes (such as carburizing and ion nitriding, the hardness can reach HRC 58 ~ 62 and the depth is about 1mm) are very suitable for 7: 24 taper shank, and the price is not expensive. Because it has enough cross section, it is not easy to deform in fact. According to the standards accepted by the industry, this kind of matrix with relatively stable size perfectly combines two properties-a soft and tough core, which can prevent the hard surface from bursting and falling off due to deformation, and a very wear-resistant hard surface.