Rail high-speed steel drill bits are divided into series and carbide series, is supporting the use of rail drilling machine, 
 Maintenance is essential rail drilling tool, which is characterized by multiple cutting edges, wear resistance, 
 High precision drilling, boring improved several times more efficient than ordinary drills. A drill bit can be the hardest one 
 40-50 on the rail material holes drilled, and drill wear after more than a dozen of continuous grinding; other 
 Carbide rail, drill bits, carbide blade made of high strength welded together, drilling, long life, 
 Should not be worn blades, drills, etc. should not be broken, and grinding can also be worn several times, the price applicable 
 In a number of railway maintenance unit is an ideal substitute for imports! All the products are export-oriented, 
 Quality assurance, welcome to contact and ask, we will be dedicated to you!