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    • Home / Products / Drilling Tools / Top-hammer Drilling Tools / Top-hammer Threaded Button Bits
    Top-hammer Threaded Button Bits

    Top-hammer Threaded Button Bits

    High-Performance Drilling Bits for Tough Rock Conditions

    Our threaded button bits are built for high-speed penetration in all rock types. Designed to work perfectly with powerful hydraulic and pneumatic rock drills, these bits ensure maximum energy transfer and a strong, reliable connection.

    From large open-pit mines to complex underground tunnels and infrastructure projects like highways, our bits deliver the durability you need. Choose our button bits for stable performance, longer service life, and higher efficiency in high-intensity drilling operations.

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    Product Details

    Threaded Button Drilling Bits

    Key Advantages of Top-hammer Threaded Button Bits

    Efficient Impact Energy Transfer

    A threaded top-hammer drilling system transfers impact energy directly through the drill string.

    A well-matched Threaded Button Bit helps minimize energy loss at the bottom of the hole and converts hammer impact into effective rock fragmentation.

    This supports:

    Thread compatibility between the drill bit and drill rod is critical for reliable energy transmission.

    High-strength Thread Connection

    The threaded connection must withstand repeated percussion, rotation and feed loads during drilling.

    Our Top-hammer Threaded Button Bits are designed with robust threaded connections to provide:

    Correct thread selection also helps reduce abnormal wear on couplings and drill rods.

    Wear-resistant Carbide Buttons

    The carbide buttons are the main cutting elements that directly contact the rock.

    High-quality carbide buttons help provide:

    Carbide grade and button geometry should be matched to rock hardness, abrasiveness and fracture characteristics.

    Stable Penetration in Different Rock Conditions

    Different geological formations require different button layouts and face designs.

    The correct bit configuration helps maintain efficient drilling in:

    Proper matching can improve penetration while reducing excessive carbide wear.

    Common Thread Systems

    Thread type is one of the most important factors when selecting a Top-hammer Threaded Button Bit.

    Common threaded drilling systems may include:

    The correct thread must match the drill rod, coupling sleeve and drilling machine configuration.

    Before ordering, confirm:

    Using incompatible threads can lead to poor connection, energy loss and premature wear.

    Button Shapes

    Different carbide button shapes offer different balances between penetration speed, durability and rock adaptability.

    Spherical Buttons

    Spherical buttons provide a large contact area and strong resistance to impact.

    They are commonly selected for:

    Advantages include:

    Ballistic Buttons

    Ballistic buttons have a more pointed profile and can provide aggressive penetration.

    They are often suitable for:

    Advantages include:

    The exact button shape should be selected according to rock type and desired drilling performance.

    Bit Face Designs

    Face design influences drilling stability, hole cleaning and carbide wear.

    Flat Face

    Flat-face button bits provide a relatively even distribution of buttons across the bit surface.

    They can offer:

    They are suitable for many quarrying and mining applications.

    Drop-center Face

    A drop-center design can improve centering and directional stability.

    It can help provide:

    This design can be suitable where hole straightness is particularly important.

    Convex Face

    Convex designs can provide concentrated rock-breaking action around the center and front of the bit.

    Depending on rock conditions, they can support efficient penetration and flushing.

    Bit face selection should be made together with button geometry rather than evaluated separately.

    Efficient Flushing and Cuttings Removal

    Efficient hole cleaning is essential in top-hammer drilling.

    If cuttings remain at the bottom of the hole, they can be repeatedly crushed instead of being removed, reducing penetration and accelerating wear.

    Threaded Button Bits can use different flushing hole arrangements to improve removal of:

    Effective flushing helps:

    Air or water flushing configuration should be matched to drilling equipment and site conditions.

     

    Thread

    R22 R23 R25 R28 R32 R35 R38 TR28 TR32 TR35

     

    T38 T45 T51

     

    ST58 T60 ST68 EL68 EL60

    Head Diameter

    28-165mm (R Thread)

     

    65-178mm (T Thread)

     

    89-152mm (Other Threads)

    Skirt Type

    Retrac / Reinforce / Standard

    Face Type

    Flat / Drop Center / Convex

    Button Shape

    Spherical Buttons / Ballistic Buttons / Conical Buttons

    Top-hammer Threaded Button Bits for Quarry Drilling

    Quarry applications often require repetitive bench holes with consistent diameter and depth.

    For quarry operators, important selection criteria include:

    The optimal bit should balance drilling speed and wear resistance rather than maximizing one factor alone.

    Top-hammer Threaded Button Bits for Mining

    Mining operations may involve both production drilling and development work.

    In continuous mining applications, bit performance affects equipment utilization because frequent bit changes increase non-drilling time.

    Reliable threaded button bits can help improve:

    Top-hammer Threaded Button Bits for Tunneling

    Tunnel drilling requires accurate hole positioning and consistent drilling depth.

    Threaded Button Bits used in tunneling should provide:

    Accurate drilling contributes to better blast profiles and reduced overbreak.

    Bit Life and Drilling Cost

    The cheapest drill bit is not always the lowest-cost option.

    The true performance of a Top-hammer Threaded Button Bit should be evaluated according to:

    A bit with a higher initial cost may provide better value if it drills more meters and reduces machine downtime.

    How to Extend Threaded Button Bit Service Life

    Use the Correct Drilling Parameters

    Excessive feed pressure, rotation speed or impact energy can accelerate wear.

    Operators should adjust drilling parameters according to:

    Maintain Proper Flushing

    Insufficient flushing increases regrinding and heat generation.

    Keep flushing holes clear and maintain adequate air or water flow.

    Inspect Button Wear Regularly

    Carbide buttons should be inspected for:

    Early inspection helps avoid severe bit damage.

    Perform Timely Button Grinding

    Where appropriate, worn buttons can be reconditioned before excessive flattening occurs.

    Proper grinding helps restore button profile and improve penetration.

    Grinding intervals depend on rock abrasiveness and drilling conditions.

    Avoid Excessive Thread Wear

    Inspect threaded connections regularly.

    Damaged or severely worn rods and couplings can accelerate bit thread wear.

    The entire drill string should be maintained as a system.

    Common Causes of Premature Bit Wear

    Premature failure can result from:

    Analyzing wear patterns can help identify whether the issue comes from the bit, drilling parameters or geology.

    How to Evaluate Button Wear

    Button wear patterns provide useful information about drilling conditions.

    Uniform Button Wear

    Usually indicates relatively balanced drilling parameters and correct bit alignment.

    Excessive Peripheral Wear

    May be associated with abrasive formations, excessive hole wall contact or drilling misalignment.

    Broken or Chipped Buttons

    Possible causes include:

    Uneven Face Wear

    May indicate:

    Regular inspection allows operators to adjust drilling practices before tool failure occurs.

    Improve Rock Drilling Efficiency with the Right Threaded Button Bit

    The correct Top-hammer Threaded Button Bit can improve penetration, reduce bit changes, maintain hole quality and help lower total drilling cost.

    Different rock formations require different combinations of thread system, bit diameter, button shape, face design and flushing configuration.

    Send us your thread type, hole diameter, rock condition and drilling equipment model, and we can help you select the appropriate Top-hammer Threaded Button Bits for your quarrying, mining or tunneling application.

    Contact us for bit specifications, compatibility confirmation and quotation.

     

    Top-hammer Threaded Button Bits

     

    Specifications

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