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Spherical Retractable Drill Bit
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Spherical Retractable Drill Bit

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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: ST68 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)
4148301024 102 4     4x12, 4x12 10x12
4148301025 102 4     4x14, 2x12 8x14
4148301026 110 4 1/3 6x14 8x16
4148301027 115 4 1/2 6x14 8x16
4148301028 127 5     8x14 9x16
4148301029 140 5 1/2 9x14 9x16

2

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Ms. Zhao
Tel: 86-10-60714361
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Contact Method
KSQ Technologies (Beijing) Co. Ltd
Rm 705, Unit 2, Building 6, Beijing, China (Mainland)
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