Multi-step sword type tungsten steel flat drill

Sword-type tungsten steel flat drill ordering products, have better chip removal effect, can determine the outer diameter size, the knife edge angle, the length of the blade edge, and determine the size of the shank according to the characteristics of the machine. Turn left and turn right, you need to inform the processing. Material, according to the material of the processing to change the chip outlet and the edge of the knife edge, if you encounter a workpiece break, you can also inform and customize