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High Air Pressure DTH Drill Bits QL50-140mm 2 Air Holes With Concave Face

Categories DTH Drill Bits
Brand Name: Pro Drill
Model Number: QL50-140mm
Certification: ISO:9001
Place of Origin: China Beijing
MOQ: 1
Price: Negotiable
Payment Terms: Western Union,L/C,T/T, , D/P
Supply Ability: 500pieces/Month
Delivery Time: 5-7work days
Packaging Details: Wooden box
Material: High Manganese Steel
Aplication: Quarry drilling, Mining,DTH drilling
Color: Red,Blue, Gold, as customer requirement
Use Air Compressor: Low/High air pressure drill bits
button material: YK 05/ MG20
packing: Wooden box
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    High Air Pressure DTH Drill Bits QL50-140mm 2 Air Holes With Concave Face

    High air pressure DTH drilling tools QL50-140mm rock drill bits with concave face


    1. Two types of DTH Bits: One type is bit with foot valve, The other type is No foot valve

    2. Bit Size:140mm

    3. Material: Carbide

    4. Air holes:2

    Designed and Made for good cuttings flush off capacity to increase drilling efficiency

    Our Tungsten Carbide DTH Drill Bits are made of high quality alloy steel with advanced heat threatment to assure the good drilling performance and long service life. They are widely used by our customers all over the world.The DTH bits have various sizes and styles ,can match many kinds of hammers such as Ingersoll-Rand, Mission, Atlas Copco etc. For the most effective operation in various drilling conditions, we offer flat face, concave, drop centre head designs.

    DTH bits advantage

    1.Material: superior quality alloy steel which is made by Timken in U.S.

    2.Tungsten carbide: "Element Six" T.C carbide which provides (the T.C buttons) for Boart Longyear.

    3.higher and more reliable quality owing to the high-tech equipment and production technology.

    DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics.

    Specific heat treatment standards and special “stress relief” processes ensure consistent performance.

    shank styleDiameterFlushing HolesGauge buttonsFace buttonsWeight(kg)

    Different face style makes DTH rock drill bits suitable for various rock conditions.

    Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.

    Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.

    Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.

    DGR face: A special design for hard or very hard rock conditions, double gauge row buttons provide very excellent ware-resistance and very longer life time. It is usually used for some bigger diameter DTH rock drill bits
    Besides, we are manufacturing the DTH rock drill bits with various shanks so they can be compatible with different DTH hammers.

    Quality High Air Pressure DTH Drill Bits QL50-140mm 2 Air Holes With Concave Face for sale
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