WT-Borehole,Stable Function,Cemented Carbide Concentric Drilling System

WT-Borehole,Stable Function,Cemented Carbide Concentric Drilling System Description: 1. We're at the cutting edge of rock drilling tool technology. Our state-of-the-art products will give you the leading edge, too. 2. Most of its parameters can be adjusted by users. 3. Carbon tungsten buttons with high strenth. 4. Drill bit face designs to maximize penetration rate and tool life. 5. We have an excellent design team. Feature Advantage: 1. Using high-quality raw materials,