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7 Degree Taper Drill Bits

7-degree taper drill bits are tools designed with a 7-degree angle between the axis of the bit and its cutting edges. These types of drill bits are commonly used in certain drilling applications, particularly in industries such as mining, construction, and quarrying.

Taper Angle:
The 7-degree taper angle refers to the inclination of the cutting edges relative to the central axis of the drill bit. This design is chosen based on the requirements of certain drilling operations.
Usage in Rock Drilling:
Tapered drill bits with a 7-degree angle are often employed in rock drilling applications. The taper design allows for effective penetration into hard rock formations.

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Product Details

Compatibility with Tapered Drill Rods:

Tapered drill bits are typically used in conjunction with tapered drill rods. The matching taper angles ensure a secure and efficient connection between the drill bit and the rod.

Drill bit	Diameter		No×button diameter			Flushing hole		Weight approx kg	TIANYUE P/N
Drill bit	mm	inch	Front	Gauge	Angle	Front	Side	Weight approx kg	TIANYUE P/N
Button bit,Short skirt	32	1 1/4	1×8	3×8	35°	1	1	0.24	1431-32722-18/38-40-53
	33	1 19/64	2×7	5×7	35°	1	1	0.26	1431-33722-27/57-42-53
	34	1 11/32	2×7	4×7	35°	1	1	0.29	1431-34722-27/47-42-53
	35	1 3/8	2×7	5×8	35°	1	1	0.33	1431-35722-27/58-42-53
	36	1 27/64	1×8	3×9	35°	1	1	0.37	1431-36722-18/39-42-53
	36	1 27/64	2×7	5×8	35°	1	1	0.37	1431-36722-27/58-42-53
	38	1 1/2	1×8	3×9	35°	1	1	0.38	1431-38723-18/39-42-53
	38	1 1/2	2×7	5×8	35°	1	1	0.38	1431-38723-27/58-42-53
	38	1 1/2	2×7	5×9	35°	1	1	0.38	1431-38723-27/59-42-53
	40	1 37/64	1×8	3×9	35°	1	1	0.4	1431-40723-18/39-40-53
	40	1 37/64	1×9	3×10	35°	1	1	0.4	1431-40723-19/310-40-53
	40	1 37/64	1×9	3×9	35°	1	1	0.4	1431-40723-19/39-42-53
	40	1 37/64	2×7	5×9	35°	1	1	0.4	1431-40723-27/59-42-53
	42	1 21/32	1×8	3×9	35°	1	1	0.43	1431-42723-18/39-40-53
	42	1 21/32	1×9	3×10	35°	1	1	0.43	1431-42723-19/310-40-53
	42	1 21/32	1×9	3×9	35°	1	1	0.43	1431-42723-19/39-42-53
	42	1 37/64	2×8	5×9	35°	1	1	0.43	1431-42723-28/59-42-53
Long skirt	32	1 1/4	2×7	5×7	35°	1	1	0.3	1435-32722-27/57-45-51
	33	1 19/64	2×7	5×7	35°	1	1	0.31	1435-33722-27/57-45-51
	35	1 3/8	2×7	5×8	35°	1	1	0.36	1435-35722-27/58-45-51
	38	1 1/2	2×7	5×9	35°	1	1	0.41	1435-38723-27/59-45-51
	41	1 5/8	2×7	5×9	35°	1	1	0.41	1435-41723-27/59-45-51

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.

Mining and Quarrying:
These drill bits are commonly used in the mining and quarrying industries for tasks such as blast hole drilling and exploration drilling. The 7-degree taper helps in achieving optimal drilling performance in challenging rock formations.
Material and Construction:
7-degree taper drill bits are constructed from high-quality materials, often high-speed steel (HSS) or tungsten carbide, to withstand the abrasiveness of rock formations.

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.

Variety of Sizes:
These drill bits are available in various sizes to accommodate different drilling requirements, including different hole diameters.
Application in Construction:
The 7-degree taper design is also suitable for certain construction applications where drilling into hard materials is required.

Actual pictures of drill bits

Threaded Drill Bits Retrac Button Bits Reaming Drill Bits Cross Bit Chisel Bit

7 Degree Taper Drill Bits

Bit process flow

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7 Degree Taper Drill Bits

Packing

Versatility:
Tapered drill bits with a 7-degree angle offer versatility in handling various rock types and formations. They can be used for both surface and underground drilling operations.

It's important to note that specific applications and characteristics may vary between manufacturers, and the choice of a drill bit depends on factors such as the type of rock or material being drilled, the drilling method, and equipment specifications. Users should refer to product specifications provided by manufacturers or consult with industry experts for guidance on selecting the most suitable 7-degree taper drill bits for their specific needs.

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