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Help CenterTungsten Carbide Button Drill Bit ST58 4 Inch / 3.5 Inch Hardened Steel Drill Bits
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Tungsten Carbide Button Drill Bit ST58 4 Inch / 3.5 Inch hardened steel drill bits
Description
This type of bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.
.
• Widely used in bench and long hole drilling
• Bit face design is ideal for medium-hard to hard abrasive rock
Color: Green or Based on Customer requirements
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
Type: ST58 Button Bit Ballistic Buttons
Applications
• Underground mining
• Tunneling
• Quarry
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) |
| 4148300973 | 89 | 3 1/2 | 6x12 | 8x12 |
| 4148300974 | 89 | 3 1/2 | 6x13 | 8x13 |
| 4148300975 | 89 | 3 1/2 | 4x13, 1x13 | 8x13 |
| 4148300976 | 89 | 3 1/2 | 4x12, 2x12 | 8x12 |
| 4148300977 | 95 | 3 3/4 | 4x13, 1x13 | 8x14 |
| 4148300978 | 102 | 4 | 6x14 | 8x14 |
| 4148300979 | 102 | 4 | 6x13 | 8x16 |
| 4148300980 | 115 | 4 1/2 | 6x14 | 8x16 |
| Product Code and Brief Description | Angle |
Front Flushing Holes |
Side Flushing Holes |
Weight (kg) |
| B1489-ST58-B-1, ST58 Button Bit, Ballistic Buttons | 35° | 2 | 1 | 4.1 |
| B1489-ST58-B-2, ST58 Button Bit, Ballistic Buttons | 35° | 2 | 1 | 4.1 |
| B1389-ST58-B-1, ST58 Button Bit, Ballistic Buttons | 35° | 4 | - | 4.1 |
| B1489-ST58-B-3, ST58 Button Bit, Ballistic Buttons | 35° | 4 | - | 4.1 |
| B1389-ST58-B-2, ST58 Button Bit, Ballistic Buttons | 35° | 4 | - | 4.6 |
| B1489-ST58-B-4, ST58 Button Bit, Ballistic Buttons | 35° | 2 | - | 6 |
| B1489-ST58-B-5, ST58 Button Bit, Ballistic Buttons | 35° | 2 | 1 | 6 |
| B1489-ST58-B-6, ST58 Button Bit, Ballistic Buttons | 35° | 2 | - | 7 |
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