Roller drill bit

- Jan 03, 2019-

At home and abroad the use of the roller bit, more than three of the wheel bit. The characteristics of this drill bit are: axial pressure and impact load distribution range is large and uniform, and can make full use of effective space, drilling smoothly. The size and shape of cemented carbide teeth used in the roller bit must be applied to the characteristics of the rock, requiring good abrasion resistance, high strength, not easy to crack and break. The cemented carbide teeth used in the roller drill bits are mainly: spherical teeth, conical spherical teeth, wedge-shaped teeth, side wedge teeth and flat-top teeth for wheel back and claw tip, etc.