Coal drill

Products coal mine supplies drill is a tool accessories, seam drilling auger shaped twist efficiently used drill pipe, coal mining is ideal indispensable tool. Usually made of high quality carbon structural steel processing, the use of coal drill when drilling. And all kinds of pneumatic coal drill rig supporting the use of anti-sudden, use of spiral drilling technology, with drilling speed, drilling molding, drilling efficiency. Greatly increase drilling speed than traditional fast. Product Attributes coal drill Features: 1, light weight (45% lighter than the old drill pipe). 2, footage fast, small dust, without leaving a vertical hole drilling cuttings into the hole clear. 3, to facilitate connection snap beans, saving strapping material. 4, the rod fell down and drilling the end of separation can be used to extend the service life. 5, through good water when wet work. Additional Notes coal drill with solid (dry coal drill) and hollow (wet coal drill) two categories, respectively, Φ26, Φ28, Φ30, Φ38, Φ40 diameter and other specifications as required drilling, the length generally 0.5-6M. Trading negotiable; phone; online transactions