| Place of Origin: | CHINA |
| Brand Name: | MIROC |
| Certification: | ISO |
| Model Number: | T38 |
| Minimum Order Quantity: | 1 |
|---|---|
| Price: | $60 |
| Packaging Details: | Wooden box |
| Delivery Time: | 20-30 |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability: | 30000 |
| Product Name: | T38 76mm Button Bit | Color: | Customer Request |
|---|---|---|---|
| Advantage: | High Performance | Quality: | High Performance |
| Connection: | Extension Rod | Feature: | High Wear Resistant |
| Customized Support: | OEM, ODM | Model Number: | R25, R28, R32, R35, R38, T38, T45, T51, ST58, ST60 |
| Type: | Standard Retrac Thread Button Bit | Application: | Granite Marble Sandstone Quarry And Mining |
| Highlight: | T38 drop center thread bit,underground tunnel mining drill tool,cost performance rock drilling tool |
||
Our Thread Button Drill Bits are precision-engineered for high-performance rock drilling across a wide range of applications. Manufactured from premium alloy steel and fitted with top-grade tungsten carbide inserts, these bits deliver exceptional durability, energy efficiency, and penetration rates—even in the most demanding drilling environments. With customizable designs and comprehensive thread options, we provide tailored solutions for soft, medium, and hard rock formations.
We offer full customization to meet your specific project requirements. Our engineering team can design and manufacture thread button bits based on your samples or technical drawings, including:
Bit diameter
Number and layout of air/water holes
Carbide button shape and configuration
Face shape design
Whether you are drilling in soft formations or hard, abrasive rock, we can tailor the bit geometry and material selection to maximize performance and service life.
| T38 button bit | ||||||
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | |||
| mm | Front | Gauge | Front | Side | kg | |
| 1 | 64 | 3×10, 1×10 | 6×11 | 3 | - | 1.7 |
| 2 | 70 | 3×10, 1×10 | 6×12 | 3 | - | 1.8 |
| 3 | 76 | 3×11, 1×11 | 6×12 | 3 | 1 | 2.6 |
| 4 | 89 | 3×11, 2×11 | 6×13 | 3 | 1 | 3.3 |
| Rock Type | Suitability |
|---|---|
| Soft Rock | ✓ (customizable) |
| Medium Rock | ✓ |
| Hard Rock (Granite, Basalt, Iron Ore) | ✓ |
| Highly Abrasive Formations (Quartz Veins) | ✓ |
Strategically positioned side and front flushing holes ensure superior air or water flow directly to the hole bottom. This design:
Quickly evacuates drill cuttings
Prevents bit balling (clogging)
Maintains high penetration rates in both dry and wet drilling conditions
This flushing efficiency is especially critical for deep blast holes in quarrying and open-pit mining operations.
![]()
✅ Longer service life – 5–6× longer than steel-tooth bits
✅ Lower cost per meter – fewer bit changes, less downtime
✅ High energy transmission – minimal energy loss during drilling
✅ Custom-engineered – tailored to your rock type and drilling conditions
✅ Reliable performance – withstands extreme impact and abrasion
![]()
![]()
![]()
Ready to optimize your drilling operations? Contact our team today to discuss your requirements or request a customized solution for your project.
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988