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Wear Resistance Retractable Drill Bit ST58 3.5 inch 4.5 inch

Categories Retractable Drill Bit
Place of Origin: China
Brand Name: MIROC
Model Number: 4148300981-4148300984
MOQ: 50
Packaging Details: Carton Box or Wooden Box
Delivery Time: 25 days
Payment Terms: T/T or L/C
Supply Ability: 20000 pieces per month
Price: negotiation
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Wear Resistance Retractable Drill Bit ST58 3.5 inch 4.5 inch


Wear Resistance Retractable Drill Bit ST58 3.5 inch 4.5 inch


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 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


Part NumberBit Diameter (mm)Bit Diameter (inch)

Front Buttons

(No. x mm)

Gauge Buttons

(No. x mm)

4148300981893 1/26x128x14
4148300982893 1/24x13, 1x138x13
414830098310247x128x14
41483009841154 1/26x148x16

Product Code and Brief DescriptionAngle

Front Flushing

Holes

Side Flushing

Holes

Weight

(kg)

R1489-ST58-S-1, ST58 Retrac Button Bit, Spherical Buttons35°215.1
R1389-ST58-S, ST58 Retrac Button Bit, Spherical Buttons35°4-5.1
R1589-ST58-S, ST58 Retrac Button Bit, Spherical Buttons35°216.5
R1489-ST58-S-2, ST58 Retrac Button Bit, Spherical Buttons35°2-8.5

Product Tags:

stone drilling bits

  

mining drill bits

  
Quality Wear Resistance Retractable Drill Bit ST58 3.5 inch 4.5 inch for sale
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