Optimized design of tungsten carbide numbers, position, protruding height and sharp improve the drilling speed and life-span.

Apply high intension and high tenacity tungsten carbide, which enhance impact resistance and reduce the broken rate of tooth.

The optimized gauge protection and materials enhance the drilling speed and life-span.

The rational design of jet grouting improves the drilling speed.

The new lubricating grease enhances thermo stability of sealed lubrication system.

The bearing can work stably and reliably under the high drilling pressure and speed condition