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High Speed R38 Button Drill Bit high Strength Alloy Steel Drilling Bit

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.: 4148300657-664

Product Description

Description

This type of bit is well known for its wear resistance and high speed drilling on soft to medium-hard rock formations (between 70 Mpa to 180 Mpa compressive strength). Featuring ballistic tungsten carbide inserts that is known to have high penetration rate, but has weak 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: R38 Button Bit Ballistic 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

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

Front Buttons 

(No. x mm)

Gauge Buttons 

(No. x mm)

4148300657 64 2 1/2 3x11 6x12
4148300658 70 2 3/4 4x11 8x11
4148300659 70 2 3/4 4x10, 1x10 8x11
4148300660 76 3 4x11 8x11
4148300661 76 3 3x11, 1x11 6x12
4148300662 76 3 4x11, 1x11 8x12
4148300663 89 3 1/2 5x12 8x12
4148300664 89 3 1/2 4x13, 1x13 8x13

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