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4.5 Inch Rock Button Drill Bit , ST58 Spherical CNC Milling Drill Bits

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.: 4148300965-972

Product Description

 

4.5 Inch Rock Button Drill Bit , ST58 Spherical CNC Milling Drill Bits

 

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.
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• Widely used in bench and long hole drilling
• 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: ST58 Button Bit Spherical Buttons

 

Applications

• Underground mining
• Tunneling
• Quarry

 

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

 

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

Front Buttons 

(No. x mm)

Gauge Buttons 

(No. x mm)

4148300965 89 3 1/2 6x12 8x12
4148300966 89 3 1/2 6x13 8x13
4148300967 89 3 1/2 4x13, 1x13 8x13
4148300968 89 3 1/2 4x12, 2x12 8x12
4148300969 95 3 3/4 4x13, 1x13 8x14
4148300970 102 4 6x14 8x14
4148300971 102 4 6x13 8x16
4148300972 115 4 1/2 6x14 8x16

 

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