China Rock Drilling Tools manufacturer
KSQ Technologies (Beijing) Co. Ltd
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Drifing / Tunneling Retractable Button Bit Dia 45 - 76mm R32 Spherical / Parabolic Buttons

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KSQ Technologies (Beijing) Co. Ltd

City: beijing




Contact Person:
Mrs.Alice Zhang
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Drifing / Tunneling Retractable Button Bit Dia 45 - 76mm R32 Spherical / Parabolic Buttons

Brand Name MIROC (KSQ)
Model Number Retrac Button Bit
Place of Origin China
Minimum Order Quantity Negotiable
Price Negotiable
Payment Terms L/C, T/T, Western Union
Supply Ability 20000 PCS Per Month
Delivery Time 10 - 20 days
Packaging Details Carton or Wooden box
Thread Model R32
Type of Buttons Spherical/Parabolic
Dimeter, mm 45-76
Material Tungsten Carbide
Application Mining operations, Drifting and Tunneling, Quarrying, Construction
Color Blue,Green or Based on Demand
Flushing Holes Front and Side
Detailed Product Description

Drifting and Tunneling Tools

Drill Retrac Button Bits

Spherical and Parabolic



Product specifications: 


Drill BitDiameter, mmNo x Button DiameterFlushing HoleWeight approx., kg
 Spherical / Parabolic Buttons
453 x 86 x 9403-1.1
483 x 96 x 10303-1.2
513 x 96 x 10303-1.4
643 x 10, 1x 106 x 11353-2.2
644 x 108 x 10402-2.2

4 x 11,

1 x 11

8 x 1135413.5



This type of bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture. Used in drifting and tunneling.


Spherical Button Characteristics:

1. Universal button
2. Good wear resistance
3. Best suited for hard ground
4. 27000-48000PSI(180 to 320Mpa)
5. Suited for abrasive to very abrasive drilling conditions

Ballistic Button Characteristics:

1. Fast Penetration

2. Best suited for soft rock
3. 10000-20000PSI(70 to 140Mpa)
4. Suited for non-abrasive drilling conditions





1. Underground mining

3. In granite and marble quarry

4. Gold Mine

5. Dimensional Stone Industry



Package: Carton or Wooden Box; also we can follow customers' requirements.

Delivery time is around 15-25 days.


P.S. We can design and manufacture products according to customers’ requirements.



Company Information:


The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd. is the result of years of advanced engineering, precision manufacturing, and dedication to the use of high-quality materials.


MIROC® Rock Drilling Tools are used by many drilling professionals related to mining, construction, tunneling, and quarrying projects around the globe.

KSQ Technologies (Beijing) Co. Ltd.

Elisa Zarovkina (Елизавета)

Product Tags: spherical drill bit   stone drilling bits   mining drill bits  
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