Spiral Diamond Drill Bit
Spiral Diamond Drill Bit is a high-performance drilling tool designed for processing hard and brittle materials such as optical glass, ceramics, sapphire, quartz, silicon carbide, and composite materials. Unlike conventional straight-groove designs, the spiral flute structure continuously removes debris and coolant during drilling, reducing heat accumulation and minimizing edge chipping. China Super Tech Co., Ltd. manufactures these tools using precision diamond coating and controlled grit distribution technology, enabling stable cutting performance, longer service life, and higher hole quality in demanding industrial applications.
- Product Introduction
Spiral Diamond Drill Bit is a high-performance drilling tool designed for processing hard and brittle materials such as optical glass, ceramics, sapphire, quartz, silicon carbide, and composite materials. Unlike conventional straight-groove designs, the spiral flute structure continuously removes debris and coolant during drilling, reducing heat accumulation and minimizing edge chipping. China Super Tech Co., Ltd. manufactures these tools using precision diamond coating and controlled grit distribution technology, enabling stable cutting performance, longer service life, and higher hole quality in demanding industrial applications.
Product Features
1.Optimized Spiral Flute for Efficient Chip Evacuation
The spiral groove design creates a continuous path for coolant flow and debris removal. During drilling of brittle materials, trapped particles often cause scratching, cracking, or tool loading. The spiral structure significantly reduces these risks by improving material evacuation efficiency.
2.High Diamond Retention Through Advanced Bonding Technology
The diamond abrasive layer is firmly bonded to the tool substrate using controlled deposition and sintering processes. This improves diamond retention strength and prevents premature abrasive loss, resulting in longer operating life and more consistent cutting performance.
3.Reduced Edge Chipping in Fragile Materials
The combination of precision grit sizing and optimized cutting geometry distributes cutting forces more evenly across the drilling surface. This helps reduce micro-cracks and edge defects, which is particularly important for optical components, semiconductor materials, and advanced ceramics.
4.Superior Heat Management
The spiral channel enhances coolant circulation around the cutting zone. Improved heat dissipation reduces thermal stress on both the workpiece and tool, helping maintain dimensional accuracy during long production runs.
5.High Hole Accuracy and Surface Quality
Precision grinding and strict concentricity control ensure stable rotation during drilling. This minimizes vibration and contributes to better roundness, smoother hole walls, and tighter dimensional tolerances.
Applications
1.Optical Glass and Precision Lens Manufacturing
Optical glass is highly susceptible to edge chipping and surface damage. The spiral flute design continuously removes glass particles and cooling fluid, reducing localized stress concentrations and helping manufacturers achieve cleaner holes with fewer secondary finishing operations.
2.Sapphire and Semiconductor Material Processing
Materials such as sapphire, silicon carbide, and semiconductor wafers exhibit extreme hardness and brittleness. The diamond cutting layer provides sufficient hardness for efficient penetration, while the optimized geometry helps prevent cracking that could compromise expensive components.
3.Advanced Ceramic Components
Industrial ceramics used in electronics, aerospace, and wear-resistant equipment require high-precision hole machining. The controlled cutting action reduces fracture propagation and improves hole consistency across batch production.
4.Composite Material Fabrication
Fiber-reinforced composites often experience delamination when drilled using conventional tools. The specialized cutting structure reduces drilling forces and improves hole quality, making it suitable for structural composite components.
5.Laboratory and Research Applications
Research institutions and prototype manufacturers frequently process difficult-to-machine materials in small quantities. The tool's versatility and precision make it suitable for development projects where material waste must be minimized.
Custom Services
1.Application-Specific Diamond Formulations
Different materials require different diamond grit sizes and concentrations. China Super Tech Co., Ltd. customizes abrasive specifications according to workpiece hardness, thickness, and required surface finish to maximize drilling efficiency and tool life.
2.Custom Dimensions and Geometry
Available customization options include:
(1)Drill diameter
(2)Overall length
(3)Working length
(4)Shank type
(5)Spiral angle
(6)Coolant channel design
(7)Diamond coating thickness
3.Process-Based Engineering Support
Rather than supplying standard products only, our engineering team evaluates drilling speed, spindle parameters, coolant conditions, and workpiece properties to recommend optimized tool configurations for specific production environments.
4.Strict Quality Control System
Every batch undergoes inspections including:
(1)Dimensional verification
(2)Concentricity measurement
(3)Coating integrity testing
(4)Diamond layer adhesion evaluation
(5)Surface quality inspection
This quality-focused approach helps customers achieve stable production performance and predictable tool lifespan.
Specifications
|
Parameter |
Specification |
|
Product Type |
Diamond Drilling Tool |
|
Diameter Range |
0.3 mm – 50 mm |
|
Overall Length |
Customized |
|
Working Length |
Customized |
|
Diamond Type |
Natural or Synthetic Diamond |
|
Grit Size |
Customized According to Application |
|
Coating Thickness |
Customized |
|
Groove Design |
Spiral Flute |
|
Shank Type |
Straight, Cylindrical, Customized |
|
Applicable Materials |
Glass, Sapphire, Quartz, Ceramics, Silicon Carbide, Composites |
|
Coolant Compatibility |
Wet Drilling Recommended |
|
Dimensional Tolerance |
According to Customer Requirement |
|
Surface Finish |
Precision Ground |
|
Manufacturing Standard |
Custom Industrial Specification |
FAQ
1.Why does a spiral flute design perform better than a straight flute design?
The spiral groove continuously transports debris and coolant away from the cutting zone. This reduces clogging, lowers drilling temperatures, and decreases the likelihood of chipping or cracking in brittle materials.
2.What materials can this tool drill effectively?
It is commonly used for optical glass, quartz, sapphire, advanced ceramics, silicon carbide, semiconductor materials, carbon fiber composites, and other hard-to-machine materials.
3.Can the tool be customized for specific machines?
Yes. Diameter, length, shank configuration, diamond grit size, coating thickness, and flute geometry can all be customized to match your machine and processing requirements.
4.How can tool life be extended?
Proper coolant supply, optimized spindle speed, controlled feed rate, and correct diamond specification selection all contribute to longer service life. Our engineering team can provide application-specific recommendations.
5.Is wet drilling necessary?
For most hard and brittle materials, wet drilling is strongly recommended because coolant helps remove debris, reduce heat generation, and improve hole quality.
6.How do I choose the correct diamond grit size?
Coarser grits generally provide faster material removal, while finer grits deliver better surface finish and hole quality. The optimal selection depends on the material, thickness, and finish requirements.
7.Can samples be provided before mass production?
Yes. China Super Tech Co., Ltd. can provide prototype samples and small-batch production runs for testing and process validation before full-scale procurement.
8.What information is required for a quotation?
To provide an accurate quotation, please share:
(1)Material type
(2)Hole diameter
(3)Material thickness
(4)Required tolerance
(5)Production quantity
(6)Machine type
(7)Operating conditions
This allows our engineers to recommend the most suitable solution for your application.
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