HOME /PRODUCTS/ Metal Mining Drill Bits pages The Alloy Bit 1. Alloy bit is made by superior steel; 2. It is wear-resistant and high impact toughness, because of good characteristics carbide bit is widely used in coal mining and ore mining; 3. Except for inner hexagon coal bit, we also supply PDC anchor bit. View More Blast Hole Tricone Rock Bits 1. Blast hole tricone rock bits; 2. Air-cooled and gas pressure deslagging; 3. Using for coal and iron ore mining; 4. We also supply tricone bit for water well drilling and oil and gas drilling. View More 2