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12 CNC Milling Button Drill Bit Rock Drill Bits For Tunneling
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12 CNC Milling Button Drill Bit Rock Drill Bits For Tunneling

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12° CNC Milling Button Drill Bit Rock Drill Bits For Tunneling

 

Description


Tapered equipment affords drillers the ability to change drilling bits whilst still using the same drilling rod. Drillers choose tapered button bits for faster drilling penetration rate. Different taper sizes have different characteristics when it comes to the “knock-off” index – the smaller angle will prevent the bit from spinning.
 

• Suitable for small hole range
• Widely used in Dimensional Stone Quarrying Industry
• Widely used in Underground Mining Industry


Color: Green or Based on Customer requirements


Material: Tungsten carbide and high strength alloy steel


Processing: CNC milling and proprietary heat treatment process


Type: 12° Tapered Button Bit Short Skirt


 
Applications


• Dimensional Stone Industry
• 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
 

 

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

Front Buttons 

(No. x mm)

Gauge Buttons 

(No. x mm)
4148300255 28 1 1/9 1x7 3x7
4148300256 28 1 1/9 1x7 4x7
4148300257 29 1 1/7 1x7 3x7
4148300258 30 1 1/6 1x7 3x7
4148300259 30 1 1/6 1x7 4x7
4148300260 30 1 1/6 2x7 4x7
4148300261 32
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Mr. Yan
Tel: 86-755-36989033
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Contact Method
China Hole Saw Online Market
NO.898,North Zhongxing Road, Shenzhen, Guangdong, China (Mainland)
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