Jinquan corporation can design and manufacture varieties of DTH bitsaccording to customer's requirements of the bit diaair hole nos.carbide button shape and the face shape. High air pressure and low air pressure DTH drill bits are both available.
 
Our DTH button hammer bitsare made from the best tungsten carbide tips & special steels, after hot heat treated, the steels reach a good level in surface compression & fatigue resistance. All of our products are compatible with many products manufactured by Sandvik, Atlas Copco, Mincon etc., all our Down the hole bits are widely used in mining, tunneling, quarrying, construction, and civil engineering projects. 
 
Normally we produce three type of bit face designs: Flat face, Convex face, Concave face. Of course, if you have any special requirement, we could produce as per your instruction completely.
 
DHD340A, DHD350R, DHD360, DHD380;
Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;
Mission 40, Mission 50 , Mission 60, Mission80;
SD4, SD5, SD6, SD8;
TD40, QL50, QL60, QL80;
BR2, BR3.
 
Down-The-Hole Drilling DTH Button Bits:
1.manufacture as your requirement
2.bit diameter, face shape
3.carbide button shape
4.number of air holes