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Tungsten Carbide Spherical Retractable Drill Bit R32 For Tunneling

Place of Origin: Zhejiang

Company Profile

Location: Shenzhen, Guangdong, China (Mainland)
Business Type: Manufacturer
Main Products: Carbon Steel Hole Saw, Drill Hole Saw, Bimetal Hole Saw

Product Detail

Model No.: 4148300521-4148300610

Product Description

Description


This type of bit is well known for its wear resistance on soft to medium-hard rock formations (between 55 Mpa to 165 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture. Recommended for eliminating hole deviation.

• Widely used drifting and tunneling
• Bit face design is ideal for soft to medium rock formations
• With Retrac Wings to help guide the bit in and out of the hole
• Effective in straight hole drilling


Color: Green,Blue or Based on Customer requirements


Material: Tungsten carbide and high strength alloy steel


Processing: CNC milling and proprietary heat treatment process


Type: R32 Retrac 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

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

Front Buttons 

(No. x mm)

Gauge Buttons 

(No. x mm)

4148300521 45 1 7/9 3x8 6x9
4148300522 48 1 8/9 3x9 6x10
4148300523 51 2     3x9 6x10
4148300524 64 2 1/2 3x10, 1x10 6x11
4148300525 64 2 1/2 4x10 8x10
4148300526 76 3     4x11, 1x11 8x11
4148300609 48 1 8/9 3x8 6x10
4148300610 51 2     3x9

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