user login

ST58 Tungsten Carbide Hardened Steel Drill Bits Dia 89mm - 115mm

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.: 4148300985-4148300988

Product Description

 

ST58 Tungsten Carbide Hardened Steel Drill Bits Dia 89mm - 115mm

 

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: ST58 Retrac 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


 

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

Front Buttons

(No. x mm)

Gauge Buttons 

(No. x mm)

4148300985 89 3 1/2 6x12 8x14
4148300986 89 3 1/2 4x13, 1x13 8x13
4148300987 102 4 7x12 8x14
4148300988 115 4 1/2 6x14 8x16

 

Post Buying Request
Product Code and Brief Description Angle

Front Flushing 

Holes

Side Flushing 

Holes

Weight 

(kg)

R1489-ST58-B-1, ST58 Retrac Button Bit, Ballistic Buttons 35° 2 1 5.1
R1389-ST58-B, ST58 Retrac Button Bit, Ballistic Buttons 35° 4 -