Product number: Tuna100276 Category: DTH bit Material: Hard alloy Specifications: 130*260 Place of Origin: China Using YK05 hard alloy, especially suitable for drilling granite, quartz rock, basalt rock layer is mine,port, railway, highway tunnel of hydropower station, and airport construction preferred bit. 1 DTH bit DTH bit is a drill hole impinger matched, splined to the impactor with drilling operation, widely used in the open pit mine mining, quarry, hydropower engineering, water well drilling, excavation of side columnsupport. It is divided into: low latent Kong Zhu tooth drill bit, in the high air pressure DTH button bits. DTH drill bits and hole impinger matched with drilling, flat, speed, the characteristics ofdrilling deep hole. So in recent years has been widely used. The 2 threaded connection column tooth drill bit Threaded connection column teeth is mainly with the hydraulic rock drill (or pneumatic rock drill rod)and hydraulic (pneumatic drill rod) supporting the use of a drill bit, through different forms of thread and matched with drill rod, drill diameter of drilling operation, by phi 32- phi 203mm, mainly used inunderground mine mining, open pit the exploitation of mines, steel mills in taphole field. Speed,grinding and convenient. 3 taper connecting column tooth drill bit Taper connecting column tooth drill bit is mainly a bit and supporting the use of pneumatic rock drilland a taper rod, through the taper is connected with the drill rod for drilling operation, mainly used in mine two crushing, bolt support, tunnel excavation field.