Reaming Drill Bits

Thread Type: R32, SR35, T38, T45, T51, ST58 , ST68

Diameter: 76mm, 89mm, 102mm, 127mm, 152mm

Button Shape: Ballistic, Spherical, Composite buttons

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Product Details

Reaming bits play a crucial role in the world of rock drilling machinery, specifically in the field of engineering and construction equipment. These bits are essential components that aid in the drilling and excavation processes, ensuring accuracy, stability, and productivity.

Rock drilling machinery is commonly used in various applications, such as mining, tunneling, and construction projects. The success of these operations relies heavily on the quality and performance of the reaming bits used. Let's delve into the key aspects of reaming bits and their significance in the industry.
What are Reaming Bits?
Reaming bits, also known as hole openers, are specialized cutting tools used to enlarge existing holes or drill new holes with larger diameters. They are generally attached to the bottom of a drill string and driven by rotational forces to remove additional material from the hole's periphery. This process enables the creation of holes with accurate dimensions and smoother surfaces.
Types of Reaming Bits
There are various types of reaming bits available, each designed for specific drilling applications. Some common types include tricone bits, PDC (Polycrystalline Diamond Compact) bits, and hole openers with fixed cutters. These bits differ in their cutting structures, materials, and drilling capabilities, making them suitable for different rock formations and drilling conditions.

Product	Button Bit
Other Names	Button drill bit,Thread button bit,Thread drill bit,Rock drill bit,Top Hammer drill bit,Drill bit,Rock bit,Hard rock dilling tools,Rock dill tool,Rock tools,Top Hammer drilling tools,Mining drill bit
Material	23CrNi3Mo
Application	Tunnelling, Mining, Quarrying, Ore Mining,Blasting and Infrastructure Construction,Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting.
Thread	R25, R28, R32, R35, R38, T38, T45, T51, ST58, ST68, GT60, SR28, SR35...
Bit Type	Thread Button Bit,Retrac Button Bit,Reaming Button Bit，Cross Bit，Chisel Bit
Skirt Design	Standard skirt, Retrac skirt, Straightrac skirt, Heavy duty skirt
Face Design	Flat face, Drop center face, Convex face, Reaming type, Cross type
Button Shape	Spherical buttons, Ballistic buttons, Conical buttons, Composite buttons
Head Diameter	28mm~152mm
Custom Design	Size,Color

Face Design	Application
	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
	Convex Face button bits are designed for fast penetration rates in softer rock.
	Drop center button drill bits are mainly suitable for the rock with low hardness, low abrasiveness, and good integrity. The bits can drill straighter holes.
	Normal Skirt For drilling in very hard and abrasive rock formations.
	Retract Skirt For drilling in loose,broken or fissured rock where it is difficult to retract the drill string due to the hole collapse.

Button Shape
	R：Round Utility carbide shape. Stong configuration against carbide fracture.
	B:Ballistic Higher penetrating carbide shape than Semi ballistic shape. Recommended for soft rock.
	BB：Semi Ballistic Combined wear resistance and high penetration rate. Recommended for medium-hard rock with moderate abrasitivity.
	SA:Spike Highest penetrating carbide shape. Weak configuration against carbide fracture. Recommended for soft to medium-hard work.