Home > Products > Retractable Drill Bit > Wear Resistance Retractable Drill Bit ST58 3.5 inch 4.5 inch
Wear Resistance Retractable Drill Bit ST58 3.5 inch 4.5 inch
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Product Details
| Brand Name | MIROC | Place of Origin | China | |
| Model Number | 4148300981-4148300984 |
Product Description
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?Number | Bit?Diameter?(mm) | Bit?Diameter?(inch) |
Front?Buttons? (No.?x?mm) |
Gauge?Buttons? (No.?x?mm) |
| 4148300981 | 89 | 3?1/2 | 6x12 | 8x14 |
| 4148300982 | 89 | 3?1/2 | 4x13,?1x13 | 8x13 |
| 4148300983 | 102 | 4 | 7x12 | 8x14 |
| 4148300984 | 115 | 4?1/2 | 6x14 | 8x16 |
| Product?Code?and?Brief?Description | Angle |
Front?Flushing? Holes |
Side?Flushing? Holes |
Weight? (kg) |
| R1489-ST58-S-1,?ST58?Retrac?Button?Bit,?Spherical?Buttons | 35° | 2 | 1 | 5.1 |
| R1389-ST58-S,?ST58?Retrac?Button?Bit,?Spherical?Buttons | 35° | 4 | - | 5.1 |
| R1589-ST58-S,?ST58?Retrac?Button?Bit,?Spherical?Buttons | 35° | 2 | 1 | 6.5 |
| R1489-ST58-S-2,?ST58?Retrac?Button?Bit,?Spherical?Buttons | 35° | 2 | - | 8.5 |
Contact Us
- KSQ Technologies (Beijing) Co. Ltd
- Contact nameMrs. Zhao Chat Now
- Phone86-10-60714361
- AddressRm 705, Unit 2, Building 6, Jialian Plaza, Liaocheng, Shandong
Product Categories
| Button Drill Bit | Chisel Drill Bit | Cross Bits | Drill Coupling |
| DTH Drilling Tools | Reaming Drill Bit | Retractable Drill Bit | Rock Drilling Tools |
| Threaded Drill Rod |
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