hainaisen manganese coal mining drill bits

3inch Directional Drill Bit PDC Cutter Hight Manganese Steel Metal Drill Bit Characteristics: 1. The bit crown is a flat polished surface, suitable for hard non-abrasive formations. Can be used for strongly directional operations with good directionality...

Features 1.Button bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength).Featuring spherical tungsten carbide inserts that is known to have strong configuration aga...

7 11 12 Degree Rock Tools Tapered Hexagonal Drill Rod for Quarrying Prodcut information: Tapered Drill rod is also called the Hexagonal Drill Rod. Tapereddrillrod is suitable for small pneumatic rock drills for shallow hole drilling operations, and are ...

...drill bit is a ring-shaped cylinder without a bottom plate Applicable strata: Very hard rock, reinforced concrete, and hard rock with uniaxial compressive strength greater than 80Mpa. Technical Parameters: Note: Customized according to customer needs. Brand Name JYXC Type QX14 Features Durable Model QX14 Use Coal Mining Material High Manganese...