Pentagon Grinding Wheel for Drill Bit Grinder HSS CBN 13C
This CBN pentagon grinding wheel is engineered for sharpening high-speed steel drill bits with precision. It features a 12.5 mm ID and 78 mm OD to fit standard spindles. Key specifications include: • 10 mm thickness for stability • 180–240 grit balance • 100 g weight • Long service life
Specifications
For: 13C- Abrasive
- CBN (Cubic Boron Nitride)
- Application
- High-Speed Steel drill bits
- Grit
- 180–240 grit for a good balance of sharpening speed and finish
- Grinding Material
- high-carbon hardened tool steel
- Wheel Life
- Long service life with proper use
- ID
- 12.5 mm
- OD
- 78 mm
- Thickness
- 10 mm
- Weight
- 100 g
Configurations
Click a row to switch| Variant | ID | OD | Grit | Thickness | Price |
|---|---|---|---|---|---|
| 13C | 12.5 mm | 78 mm | 180–240 grit for a good balance of sharpening speed and finish | 10 mm | ₹6,000 |
| 13D | 12.5 mm | 78 mm | 180–240 grit for a good balance of sharpening speed and finish | 10 mm | ₹6,000 |
| 20C | 18 mm | 92 mm | 180–240 grit for a good balance of sharpening speed and finish | 15 mm | ₹7,200 |
| 26C | 18 mm | 125 mm | 180–240 grit for a good balance of sharpening speed and finish | 20 mm | ₹8,599 |
Operational Safety and Handling
- Inspect wheel for cracks before every installation
- Ensure correct rotation direction matches wheel marking
- Use appropriate personal protective equipment (PPE)
- Store in dry conditions to prevent moisture damage
Precision Geometry Compatibility
- Specifically engineered for Pentagon-style drill bit grinders
- Ensures accurate angle replication on HSS tools
- Compatible with standard spindle sizes like 12.5 mm ID
- Fits common wheel dimensions such as 78 mm OD
Extended Service Life
- Designed for long service life with proper use
- Resists wear better than aluminum oxide wheels
- Maintains dimensional stability during heavy-duty tasks
- Lowers total cost of ownership through durability
Optimized Grit and Finish
- Available in 180–240 grit range for balanced performance
- Optimized for sharpening High-Speed Steel (HSS) drill bits
- Achieves a good balance of sharpening speed and finish
- Reduces heat generation during the grinding process
CBN Abrasive Performance
- Utilizes Cubic Boron Nitride (CBN) for superior hardness
- Ideal for grinding high-carbon hardened tool steel
- Delivers consistent cutting action over extended use
- Maintains sharpness longer than conventional abrasives
More questions buyers ask
What is a CBN grinding wheel?
CBN (Cubic Boron Nitride) is a super-hard abrasive material, second only to diamond, ideal for grinding hardened tool steels and HSS.
Why choose CBN over aluminum oxide for HSS?
CBN wheels maintain their shape longer, generate less heat, and provide superior surface finish on hardened HSS tools compared to conventional abrasives.
Are these wheels compatible with all drill grinders?
These are specifically engineered for Pentagon-style drill bit grinders. Please check your spindle ID and wheel OD requirements.
What grit should I use for HSS sharpening?
A grit range of 180–240 is typically recommended for a balanced performance between material removal speed and surface finish.
How do I maintain my CBN grinding wheel?
Keep the wheel clean, store in a dry place, and ensure it is properly balanced on your machine spindle to prevent vibration.
Can I use this wheel for woodturning tools?
While CBN is excellent for HSS, ensure the wheel dimensions and grit are appropriate for your specific tool geometry.
What is the lifespan of a CBN wheel?
With proper use and maintenance, CBN wheels offer a significantly longer service life than standard grinding wheels due to their extreme hardness.
Do you provide GST invoices?
Yes, all our products come with a valid GST invoice for business accounting.
Is pan-India delivery available?
Yes, we offer reliable pan-India shipping for all industrial machine accessories.
How do I know which size to pick?
Match the wheel OD (Outer Diameter) and ID (Inner Diameter) to your specific drill grinder model specifications.
Who should choose the 13C variant?
The 13C is ideal for standard HSS drill bit sharpening tasks requiring a 78mm OD wheel with a 12.5mm ID.
Who should choose the 13D variant?
The 13D offers similar dimensions to the 13C but is optimized for specific Pentagon grinder configurations.
Who should choose the 20C variant?
Choose the 20C if your grinder requires a larger 92mm OD wheel with an 18mm ID for heavier-duty sharpening.
Who should choose the 26C variant?
The 26C is the largest option available, featuring a 125mm OD and 20mm thickness, perfect for high-volume or larger drill bit sharpening.
How does the 13C compare to the 26C?
The 13C is a compact wheel for standard tasks, while the 26C is a larger, heavy-duty wheel designed for more demanding sharpening applications.
Are all these wheels CBN-coated?
Yes, all variants listed are high-performance CBN-coated wheels designed for professional industrial use.
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Full description
This CBN pentagon grinding wheel is engineered for sharpening high-speed steel drill bits with precision. It features a 12.5 mm ID and 78 mm OD to fit standard spindles. Key specifications include: • 10 mm thickness for stability • 180–240 grit balance • 100 g weight • Long service life