Double spiral hole bar with double holes 30° has good bending strength and wear resistance. It is mainly used for monolithic alloy drill bit making.

【Characteristics of tungsten steel round bar with double screw holes】

1. Adopting spray drying tower to prepare raw material, with low oxygen content, high purity and even density.

2. Adopting overpressure automatic pressure relief extrusion equipment, accurate size, uniform density, high roundness and straightness, various types of tungsten steel bars can be produced.

3. adopting low pressure sintering technology, all the properties are stable, the denseness and strength of the products are effectively improved.

4. according to the customer's requirements of tungsten steel bars can be high-precision precision grinding, can be mirror effect, precision grinding bar tolerance grade h7/h6/h5