12° Tapered Mining Button Drill Bit Rock Drill Bits For Tunneling

12 Tapered Mining 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

Brand Name MIROC
Payment Terms T/T or L/C
Place of Origin China
Price negotiation
Delivery Time 25 days
Minimum Order Quantity 50
Product Description

 

12° Tapered Mining 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 1 1/4 2x7 5x7
4148300262 33 1 2/7 2x7 5x7
4148300263 34 1 1/3 2x7 5x8
4148300264 35 1 3/8 2x7 4x7
4148300265 35 1 3/8 2x7 5x8
4148300266 35 1 3/8 2x7 5x9
4148300267 36 1 3/7 2x7 5x9
4148300268 37 1 4/9 2x7 5x9
4148300269 38 1 1/2 1x9 5x9
4148300270 38 1 1/2 2x7 5x9

 

Product Code and Brief Description Angle

Front Flushing 

Holes

Side Flushing 

Holes

Weight 

(kg)

BS428-12D-22, 12° Tapered Button Bit, Short Skirt 20° 1 1 0.2
BS528-12D-22, 12° Tapered Button Bit, Short Skirt 35° 1 1 0.2
BS429-12D-22, 12° Tapered Button Bit, Short Skirt 40° 1 1 0.21
BS430-12D-22, 12° Tapered Button Bit, Short Skirt 40° 1 1 0.22
BS530-12D-22, 12° Tapered Button Bit, Short Skirt 35° 1 1 0.22
BS630-12D-22, 12° Tapered Button Bit, Short Skirt 30° 1 1 0.22
BS732-12D-22, 12° Tapered Button Bit, Short Skirt 40° 2 1 0.24
BS733-12D-22, 12° Tapered Button Bit, Short Skirt 35° 1 1 0.25
BS734-12D-22, 12° Tapered Button Bit, Short Skirt 35° 1 1 0.29
BS635-12D-22, 12° Tapered Button Bit, Short Skirt 35° 1 1 0.33
BS735-12D-22-1, 12° Tapered Button Bit, Short Skirt 35° 2 1 0.33
BS735-12D-22-2, 12° Tapered Button Bit, Short Skirt 35° 1 1 0.33
BS736-12D-22, 12° Tapered Button Bit, Short Skirt 35° 1 1 0.37
BS737-12D-22, 12° Tapered Button Bit, Short Skirt 40° 1 1 0.38
BS638-12D-22, 12° Tapered Button Bit, Short Skirt 40° 1 1 0.4
BS738-12D-22, 12° Tapered Button Bit, Short Skirt 35° 1 1 0.4

 

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