1. Product Overview
The Q7-32mm taper button bit is a specialized drilling tool designed for rock drilling and mining applications. Unlike a conventional taper bit, it features button-shaped carbide inserts (tungsten carbide buttons) embedded into the bit body for enhanced durability and cutting efficiency in hard rock formations.
"Q7" : Likely denotes the series or design code.
"32mm" : Indicates the maximum diameter of the bit's tapered section.
TAPERED ROCK DRILLING TOOLS - 7° Button bit, long skirt
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | Part Number |
| mm | inch | Front | Gauge | Angle | Front | Side | kg |
| 32 | 1 1/4 | 2x7 | 5x7 | 35° | 1 | 1 | 0.3 | 4148300174 |
| 33 | 1 2/7 | 2x7 | 5x7 | 35° | 1 | 1 | 0.31 | 4148300175 |
| 35 | 1 3/8 | 2x7 | 5x8 | 35° | 1 | 1 | 0.36 | 4148300176 |
| 38 | 1 1/2 | 2x7 | 5x9 | 35° | 1 | 1 | 0.41 | 4148300177 |
| 41 | 1 3/5 | 2x7 | 5x9 | 35° | 1 | 1 | 0.42 | 4148300178 |
2. Key Features
Tapered Design : Gradual increase in diameter (e.g., from a smaller pilot diameter to 32mm).
Carbide Buttons : Tungsten carbide inserts provide high abrasion resistance for prolonged life in hard rock.
Material : Forged alloy steel body with heat-treated hardness for impact resistance.
Threaded Shank : Typically features a tapered or threaded connection (e.g., R32, T38, or other standard rock drill thread types).
Flushing Holes : Allows for air or water flushing to remove drill cuttings.
3. Applications
Mining & Quarrying : Drilling blast holes in hard rock (granite, basalt, etc.).
Construction : Foundation drilling, tunneling, and demolition work.
Exploration : Core drilling or percussive drilling in geological surveys.
4. Technical Specifications (Example)
PARAMETER: DETAILS
Bit Type: Tapered button bit
Diameter Range: Tapers up to 32mm
Shank Type: Tapered (e.g., T38, R32) or threaded
Button Count: Typically 4-8 inserts, depending on size
Material: High-grade steel body with tungsten carbide buttons
Flushing: Central or side flushing holes
5. Usage Guidelines
Drill Compatibility : Ensure compatibility with percussive rock drills (e.g., jackhammers, down-the-hole hammers).
Rotation Speed : Optimize RPM based on rock hardness (lower for harder formations).
Flushing : Use compressed air or water to keep the hole clean and prevent overheating.
Maintenance : Regularly inspect buttons for wear and replace if cracked or excessively worn.
6. Advantages Over Standard Bits
Longer Lifespan : Carbide buttons resist wear better than steel-only bits.
Faster Penetration : Efficient cutting in abrasive rock.
Reduced Vibration : Stable performance in high-impact drilling.
Would you like additional details on specific shank types, recommended operating pressures, or wear patterns ? Let me know the application context for further customization!
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Q7-32mm Taper Button Bit for Taper Rod Granite Quarry Images
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