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high quality 7degree 11degree 12degree carbide Tapered bit

Good quality Tapered Rod for sales
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high quality 7degree 11degree 12degree carbide Tapered bit

China high quality 7degree 11degree 12degree  carbide Tapered bit supplier

Large Image :  high quality 7degree 11degree 12degree carbide Tapered bit

Product Details:

Place of Origin: China
Brand Name: Prodrill
Certification: ISO9001
Model Number: 7 degree 11 degree 12degree

Payment & Shipping Terms:

Minimum Order Quantity: 5pcs
Price: $300/pc
Packaging Details: wooden box
Delivery Time: 10-15
Payment Terms: T/T
Supply Ability: 10000pcs/month
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Detailed Product Description
Type: Drill Bit Machine Type: Drilling Tool
Material: Carbide Processing Type: Forging
Use: Well Drilling

Our taper drilling tools include taper drill bits and taper drill rod,and taper drill bits come into two types,taper button drill bits,taper chisel drill bits.These drill tools are mainly equipped on rock drilling equipment,well drilling equipment and oil field equipment.They are widely used for rock drilling,blasting holes and other drill works in quarries,coal mines,rod and dam constructions and other similar projects.

Comparing with tapered chisel bits and tapered cross bits, button bits has higher technology, much longer primary drilling time and higher drilling efficiency, so that the button bit is popular among the users. 

Made with high quality of raw material through special heat treatment ,especially, tungsten carbide of tapered button bits are from Boart long year,widely applied in Hand Hold ( short-hole) drilling system for dimensional stone quarrying. At now, we are exporting the huge qty of Q7- 33- 7 22-80 , Q9 -45 -12 22- 71 for Indian quarry and Norway, Finland quarry. 
Diameter of bits from 30mm to 50mm with 4 ,6,7,11,12 degree, premium alloy tapered drill steel with Hexagonal.22mm and Hexagonal.25mm,The deliver capacity are very strong and can completely meet customer’s requirements on delivery design,number of buttons is 4,5,6,7,8,9,7 buttons is very popular for hold held (short holes ) and blast drilling system. 

Product Name:

Tungsten carbides tapered drill bit


Rock cross drill bit, Tapered cross bits, Tapered button bits/ 34mm button drill bit


Use in granite and marble quarry, gold mine, railway, tunnel, etc. for drilling


Tapered drill bits connect tapered drill steel of rock drill for drilling holes


High quality carbide and high quality steel



We can design and manufacture according to your requirement of diameter, number air holes and carbide button shape.

Types of drill bits

Diameter          (mm)

Taper Angle (Degree)

Length       (mm)

Tapered chisel bits


4 degree/ 6 degree/ 7 degree/ 11 degree/ 12 degree


Tapered cross bits



Tapered button bits




Main Products:

1-12 inch middle-low/high air pressure DTH hammers & bits
Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling 
Eccentric overburden drilling Equipment 
Hole opener bit 
Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45,T51, ST58,GT60)

Extension Rod, M/F Rod, M/m Rod, Drift Rod,
Shank adapter, coupling sleeves and all kinds of adapters 


Compared with the oversea brands, our advantages are bellowing:

a. Our products can match over 95% against the original products

b. Price are competitive against the famous brands and best quality against the small factory


About Us:

1.    Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.

2.    We have advanced technology and equipment.

3.    Our technician has more than 13 year’s professional working experience.

4.    Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.



7 degree for Hexagon 22.
Part number Diameter in mm Length in mm Inserts Diameter inserts
7D33-7-22 33 70 5+2 parabolic 7mm
7D33-8-22 33 70 6+2 parabolic 7mm
7D36-7-22 36 70 5+2 parabolic 5x8mm + 2x7
7D36-8-22 36 70 6+2 parabolic 6x8mm + 2x7
7D38-7-22 38 70 5+2 parabolic 5x9mm + 2x7
7D38-8-22 38 70 6+2 parabolic 6x9mm + 2x7
7D38-4-22 38 70 4 parabolic 4x9mm
7D40-7-22 40 70 5+2 parabolic 5x9mm + 2x7
7D40-8-22 40 70 6+2 parabolic 6x9mm + 2x7
11 degree for Hexagon 22.
Part number Diameter in mm Length in mm Inserts Diameter inserts
11D33-7-22 33 50 5+2 parabolic 7mm
11D33-8-22 33 50 6+2 parabolic 7mm
11D36-7-22 36 50 5+2 parabolic 5x8mm + 2x7
11D36-8-22 36 50 6+2 parabolic 6x8mm + 2x7
11D38-7-22 38 50 5+2 parabolic 5x9mm + 2x7
11D38-8-22 38 50 6+2 parabolic 6x9mm + 2x7
11D38-4-22 38 50 4 parabolic 4x9mm
11D40-7-22 40 50 5+2 parabolic 5x9mm + 2x7
11D40-8-22 40 50 6+2 parabolic 6x9mm + 2x7
12 degree for Hexagon 22.
Part number Diameter in mm Length in mm Inserts Diameterinserts
12D32-7-22 32 50 5+2 parabolic 7mm
12D32-8-22 32 50 6+2 parabolic 7mm
12D33-7-22 33 50 5+2 parabolic 7mm
12D33-8-22 33 50 6+2 parabolic 7mm
12D36-7-22 36 50 5+2 parabolic 5x8mm + 2x7
12D36-8-22 36 50 6+2 parabolic 6x8mm + 2x7
12D38-7-22 38 50 5+2 parabolic 5x9mm + 2x7
12D38-8-22 38 50 6+2 parabolic 6x9mm + 2x7
12D38-4-22 38 50 4 parabolic 4x9mm
12D40-7-22 40 50 5+2 parabolic 5x9mm + 2x7
12D40-8-22 40 50 6+2 parabolic 6x9mm + 2x7


Contact Details
Xiamen Prodrill Equipment Co., Ltd

Contact Person: Mr. Simon Hu

Tel: 86-592-5187313

Fax: 86-592-5162951

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