ST58 Hardened Steel Drill Bits Diameter 89mm - 115mm Retractable Button Drill Bit
ST58 Hardened Steel Drill Bits Diameter 89mm - 115mm Retractable Button Drill Bit
Description
Rock drilling tools manufacturer KSQ offers rock drill bits: ST58 Retrac Threaded Button Bits are one of the most important size for benching and long hole drilling underground
• 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
Our products can match over 95% against the original products
Price are competitive against the famous brands and best quality against the small factory
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 |
| 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 | - | 5.1 |
| R1589-ST58-B, ST58 Retrac Button Bit, Ballistic Buttons | 35° | 2 | 1 | 6.5 |
| R1489-ST58-B-2, ST58 Retrac Button Bit, Ballistic Buttons | 35° | 2 | - | 8.5 |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.