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Button Drill Bit R28 Rock Drilling Tools Spherical Buttons Dia 37mm - 45mm CNC Milling

Button Drill Bit R28 Rock Drilling Tools Spherical Buttons Dia 37mm - 45mm CNC Milling

  • Button Drill Bit R28 Rock Drilling Tools Spherical Buttons Dia 37mm - 45mm CNC Milling
  • Button Drill Bit R28 Rock Drilling Tools Spherical Buttons Dia 37mm - 45mm CNC Milling
  • Button Drill Bit R28 Rock Drilling Tools Spherical Buttons Dia 37mm - 45mm CNC Milling
  • Button Drill Bit R28 Rock Drilling Tools Spherical Buttons Dia 37mm - 45mm CNC Milling
Button Drill Bit R28 Rock Drilling Tools Spherical Buttons Dia 37mm - 45mm CNC Milling
Product Details:
Place of Origin: China
Brand Name: MIROC
Model Number: 4148300436-442
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
High Light:

hardened steel drill bits

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milling drill bits

 

 Button Drill Bit R28 Rock Drilling Tools Spherical Buttons Dia 37mm - 45mm CNC Milling

 

 

Description

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.

• Widely used drifting and tunneling
• Bit face design is ideal for medium-hard to hard abrasive rock

Color: Green or Based on Customer requirements

Material: Tungsten carbide and high strength alloy steel

Processing: CNC milling and proprietary heat treatment process

Type: R28 Button Bit Spherical Buttons

 

Applications

• Underground mining
• Tunneling

 

Competitive Advantage

• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment

 

specification

1

<

Part Number Bit Diameter (mm) Bit Diameter (inch)

Front Buttons 

(No. x mm)

Gauge Buttons 

(No. x mm)

4148300436 37 1 4/9 2x7 5x9
4148300437 38 1 1/2 2x8 4x9
4148300438 38 1 1/2 2x7 5x9
4148300439 41 1 5/8 2x8 5x9
4148300440 43 1 5/7 2x9 5x9
4148300441 45 1 7/9 2x9 5x10
4148300442 45 1 7/9 3x8 6x9

2

<

Product Code and Brief Description Angle

Front Flushing 

Holes

Side Flushing 

Holes

Weight 

(kg)

B737-R28-S, R28 Button Bit, Spherical Buttons 30° 1 1 0.5
B638-R28-S, R28 Button Bit, Spherical Buttons 30° 1 2 0.6
B738-R28-S, R28 Button Bit, Spherical Buttons 30° 1 1 0.6
B741-R28-S, R28 Button Bit, Spherical Buttons 35° 1 1 0.7
B743-R28-S, R28 Button Bit, Spherical Buttons 35° 1 2 0.8
B745-R28-S, R28 Button Bit, Spherical Buttons 30° 1 2 0.9
B945-R28-S, R28 Button Bit, Spherical Buttons 35° 1 3 0.9

 

Contact Details
KSQ Technologies (Beijing) Co. Ltd

Contact Person: Yingkai

Tel: +8618501231988

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