Key factor to select the right cutter bits 

1.High hardness 

Cutter bits plays an important role in cutting works, so its hardness is an important factor in selecting the material. The hardness of cutting object is very high, it requires the cutter bits possess the corresponding hardness. It's hard to excavate the object if hardness of cutter bits is insufficient and cannot make sure the efficiency and quality of the cutting works. 

2.High toughness 

The material used for cutter bits requires high toughness. The material will be processed into different shapes of cutter bits, which requires the high toughness for a perfect cutter bits. And during cutting works, the cutter bits will endure the impulse from the cutting object. 

3.High abrasion resistance 

Abrasion resistance is another key factor to select the material. The cutter bits will abrase with the cutting object. If the cutter bits cannot resist the abrasion, it will surely affect its performance and service life.