Thread button bit

Thread button bits for rock drilling, a kind of top hammer rock drill bit, is mainly used with hydraulic drill rods (pneumatic drill rods) and hydraulic rock drills (or pneumatic rock drills) in top hammer drilling. Button bits rock drilling use different forms of threads to cooperate with the drill rod to perform drilling operations.

Product Description

Types of Button Bits for Sale

KingKong, a reliable button bits factory, offers high-quality top hammer button rock drill bits for sale at competitive prices. We have the most of threaded button bits that you need, such as R32 drill button bit, t38 drill bits, t45 bits, T51 bits, etc. Check more about our hard rock drill bits and soft rock drill bits in the following!

Thread button bits

Thread button bits

In top hammer threaded drilling tools, standard threaded button bit is the most widely used drill bit, which can be applied to all rock conditions. Our standard button bits are R25 button bit, R28 button bit, R32 button bit, R35 button bit, R38 button bit, T38 button bit, T45 button bit, T51 button bit, GT60 button bit, ST58 button bit, ST68 button bit, SR35 button bit…


Retrac button bits

Retrac button bits

Retrac button bits are mainly used in loose rock mass with relatively broken rock. The retrac skirt design can assist in retrieving the drill tool, reduce the phenomenon of bit stuck and buried, and help improve the straightness of the borehole.

As a China retrac button bit supplier, we can provide you with high-quality button bit includes retrac rock drill bits, such as R25 retract button bit, R28 retract button bit, R32 retrac button bit, R35 retrac button bit, R38 retrac button bit, T38 retract drill bit, T45 retract drill bit, T51 retract drill bit, GT60 retract button bit, ST58 retrac button bit, ST68 retrac button bit, SR35 retrac drill bit and other types of rock drill bit.


Reaming bit, also known as pilot reamer bit, is a hole opener that drills a pilot hole to a certain depth and then reams the hole to a larger diameter. It is mainly used for center hole reaming in long hole drilling. Threaded reaming bits are divided into integral reaming bit (dome type, pilot type) and split-type reaming bit. Our reaming button bits are mainly dome reaming bits and pilot reaming bits, such as R25 reaming bit, R28 reaming bit, reaming bit R32, R35 reaming bit, R38 reaming bit, T38 reaming bit, T45 reaming bit, T51 reaming bit, ST58 reaming bit, ST68 reaming bit, SR35 reaming bit…

Button Bit Product Specification

ProductTop Hammer Rock Drilling Tool – Button Bit
Other Namestop hammer drill bits, threaded button bit, threaded drill bit, hard rock drilling bits, button drill bit, rock drill bits, mining drill bits
MaterialStructural Alloy Steel, Tugestun Carbide
ApplicationTunnelling, Mining, Quarrying, Blasting and Infrastructure Construction

Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting

ThreadR25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR28, SR35…
Bit TypeStandard button bit, Retrac button bit, Pilot Reaming Bit, Dome reaming bit
Skirt DesignStandard skirt, Retrac skirt, Straightrac type, Heavy duty skirt
Face DesignFlat face, Drop center face, Convex face, Uni-face, Reaming type, Cross type, X type
Button ShapeSpherical buttons, Ballistic buttons, Conical buttons, Composite buttons
Head Diameter28mm~152mm
Custom DesignAcceptable
We offer different threaded Button Bit Types including standard button bit, retrac button bit, pilot reamer bit, spherical button drill bit, ballistic button bit, flat face drill bit, drop center drill bit etc. What’s more, custom design of hard rock drilling bits is supported.
King Kong top hammer drill bits

Button Bits Rock Drilling Advantages

High-quality raw material

Our button rock drill bits are made of high-quality steel and cemented carbide as raw materials. After a special heat treatment process, the drilling rig drill bit has a long service life and can minimize the loss of impact energy during transmission.

Advanced button fixation technology

The drilling rig drill bit adopts advanced button fixation technology. The fixation force is uniform and it is not easy to lose buttons. At the same time, it can ensure the verticality of the drilling hole, so that the impact energy can be concentrated on the rock.

Advanced thread manufacturing process

Our drill button bits are with advanced thread manufacturing technology. Threads manufactured with precise tolerances enable the drill bit and the drill rod to be connected more tightly, and can transmit impact energy more effectively, while greatly reducing the risk of dents and fractures at the thread end, and improving overall production efficiency. In actual use, many of our thread button bits, such as R32 button bit, T38 drill bits, T45 drill bits, T51 bits are all have good performance.

Excellent rock drilling bits design

Litian is one of the experienced drill bit manufacturers in China and we have many face designs of drill button bits suitable for different rock formations, which can meet the drilling requirements of different hardness rocks, improve drilling efficiency and reduce costs.

Strict quality control

All button drill bits for rock drilling have implemented strict quality control to ensure that each button drill bit is of high quality.

Button Bits Selection

For different rock formations and drilling requirements, button rock drill bits need to be equipped with different types of bit faces, skirts and carbides.

Bit Face Selection

Face DesignApplication
litian flat face design    litian-flat-face-rock-tool.jpg

Flat Face

Flat face button drill bits are suitable for all rock conditions, especially for the rock with higher hardness and higher abrasiveness. Such as granite and basalt.
Drop Center Button Bit

Drop Center

Drop center button drill bits are mainly suitable for the rock with low hardness, low abrasiveness, and less consolidation. The bits can drill straighter holes.
Convex Face Button Bit


Convex Face button bits are designed for fast penetration rates in softer rock.

Carbide Button Selection

Button shapesApplication
Rock HardnessPenetration VelocityCarbide Service LifeVibration
spherical buttons

Spherical Buttons





longer service life

less prone to breaking




ballistic buttons

Ballistic Buttons






shorter service life

more prone to breaking




conical buttons

Conical Buttons





shorter service life

more prone to breaking




Skirt Selection

Skirts                                                                                   Application
Standard Skirt Button Bit

Standard Skirt

Standard skirt button drill bits are suitable for all rock conditions.
Retrac Skirt Button Bit

Retrac Skirt

Retrac button drill bits are mainly used for unconsolidated rock mass with poor integrity. The skirt is designed to improve the straightness of the drilling hole and assist in the retrieval of drill rock tools.


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