Bit Face: Flat, Concave, Convex，Drop-Center and Double Gauge face.
Button shape: Spherical, Ballistic, Parabolic Conical .
Bit shank: BR, DHD, SD, Cop, QL, Mission, etc.
Material:High quality alloy steel and tungsten carbide, optimum design, multiple precision heat-treatment. Characteristics:Highest penetration rate, maximum wear resistance, longest life and outstanding performance.
D165 high pressure DTH Drill Bit with DHD350 hammer for mining
-----------------------------------------------------FAQ------------------------------------------------
Q: Why choose us?
A: High-quality products,reasonable price,professional team work
Q: Which industry can use our products?
A: Mining,tunnel,foundation pit,quarry,oil,well,etc.
Q: Do you have different type for different kind of stone?
A: Yes, according hardness of stone and stone's feature, we have different type respectively.
Q: If we need technical support, can you offer us?
A: Yes, we have an experienced team, offering our customers additional benefits with specific advice.
Q: Do you offer free samples?
A: Normally we do not offer free samples, but we could properly adjust according to detailed requirement.
Q: Is there cheap shipping cost to import to our country?
A:For small order, express will be the best, and for bulk order, sea is best way but take longer time. For urgent orders, we suggest via air or by express send to your destination.
