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R38 2.5 Inch Stone Drill Bits CNC Milling Retractable Rock Drill Bit

R38 2.5 Inch Stone Drill Bits CNC Milling Retractable Rock Drill Bit

R38 2.5 Inch Stone Drill Bits CNC Milling Retractable Rock Drill Bit
R38 2.5 Inch Stone Drill Bits CNC Milling Retractable Rock Drill Bit
R38 2.5 Inch Stone Drill Bits CNC Milling Retractable Rock Drill Bit
Product Details:
Place of Origin: China
Brand Name: MIROC
Model Number: 4148300665-4148300670
Payment & Shipping Terms:
Minimum Order Quantity: 50
Price: negotiation
Packaging Details: Carton Box or Wooden Box
Delivery Time: 25 days
Payment Terms: T/T or L/C
Supply Ability: 20000 pieces per month
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Detailed Product Description
Product Name: Rock Drill Bits Usage: Mining, Coal, Iron Ore, Gold Mining Drilling
Button Bit Shape: Spherical And Ballistic Face Shape: Flat Shape And Drop-center Shape
Body Type: Normal Type And Retract Type Angle: 30°,35°,40°
Flushing Hole: 2 Or 4
High Light:

stone drilling bits

,

mining drill bits

Description

In addition to the choice of tunsten carbide button grade, how to choose the drill bit design is very important for the drilling work efficiency, also it will have a direct impact on the hole effect & vertical degree. Combined with our production and sales experience, we have summarized some of the following lessons for reference only:

 

How to choose the bit tooth type:

Spherical buttons: The height of exposed teeth is low, mainly used in the very hard rock formation above F14, to improve wear resistance, to prevent the situation of debris, it should take lower drilling speed.

 

Ballistic buttons: It can expose more height of buttons, mainly used in soft rock and ordinary rock below F12, with quicker drilling speed, but encountered hard rock, very easily to happen buttons debris phenomenon.


Color: Green,Blue or Based on Customer requirements
 

R38 2.5 Inch Stone Drill Bits CNC Milling Retractable Rock Drill Bit

 

Material: Tungsten carbide and high strength alloy steel


Processing: CNC milling and proprietary heat treatment process


Type: R38 Retrac Button Bit Spherical Buttons


Applications
• Underground mining
• Tunneling

 

Advantage

1.High penetration rate for productivity.

2.Extended service life and lower drilling cost.

3.Excellent straightnesss and hole clean quality.


Specification

Part Number Bit Diameter (mm) Bit Diameter (inch) Front Buttons (No. x mm)

Gauge Buttons 

(No. x mm)

4148300665 64 2 1/2 3x10, 1x10 6x11
4148300666 70 2 3/4 4x10, 1x10 8x11
4148300667 76 3     4x11, 1x11 8x11
4148300668 76 3     4x11, 1x11 8x12
4148300669 89 3 1/2 5x12 8x12
4148300670 89 3 1/2 4x13, 1x13 8x13

 

Product Code and Brief Description Angle

Front Flushing 

Holes

Side Flushing 

Holes

Weight 

(kg)

R1064-R38-S, R38 Retrac Button Bit, Spherical Buttons 35° 3 - 2.2
R1370-R38-S, R38 Retrac Button Bit, Spherical Buttons 35° 4 - 2.4
R1376-R38-S-1, R38 Retrac Button Bit, Spherical Buttons 40° 4 - 3.3
R1376-R38-S-2, R38 Retrac Button Bit, Spherical Buttons 35° 4 - 3.3
R1389-R38-S-1, R38 Retrac Button Bit, Spherical Buttons 35° 2 - 4.8
R1389-R38-S-2, R38 Retrac Button Bit, Spherical Buttons 35° 4 - 4.8

 

R38 2.5 Inch Stone Drill Bits CNC Milling Retractable Rock Drill Bit 0

 

R38 2.5 Inch Stone Drill Bits CNC Milling Retractable Rock Drill Bit 1

 

 

Contact Details
KSQ Technologies (Beijing) Co. Ltd

Contact Person: Mr. Yingkai Zhang

Tel: +86 18501231988

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