2.0-2.95mm Internal Coolant Holes HRC60 5D carbide end milll
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BEYOND HRC60 Internal Coolant Holes 5D Carbide Micro Drills (2.0-2.95mm) - Precision Cooling for Micro Drilling Applications
Experience breakthrough performance in micro drilling with the BEYOND Internal Coolant Holes 5D series. Featuring advanced through-tool coolant holes technology in a compact 2.0-2.95mm diameter range, these HRC60 carbide micro drills deliver exceptional precision and tool life. The integrated coolant holes direct high-pressure coolant directly to the cutting edge, enabling efficient deep hole drilling in challenging materials where heat buildup and chip evacuation are critical concerns.
Key Features & Benefits:
- Micro Internal Coolant Holes: Precision-engineered coolant holes system designed for small diameters, providing effective cooling and chip evacuation in micro drilling applications.
- Optimized 140° Point Angle: Wide point geometry reduces thrust force by 50-60%, ensures perfect centering, and prevents drill walking in precision applications.
- Extended 5xD Flute Length: Exceptional 5:1 depth-to-diameter ratio enables drilling deep micro holes up to 14.75mm, perfect for complex components and deep cavities.
- HRC60 Ultra-Hard Micro-Grain Carbide: Superior wear resistance and rigidity maintain dimensional accuracy in extended micro drilling operations.
- Precision Coolant Holes Design: Specially positioned coolant holes ensure optimal coolant flow to the cutting edges for maximum cooling efficiency.
- Enhanced Surface Treatment: Special coating reduces friction and prevents material adhesion in sticky materials like aluminum and stainless steel.
Product Specifications:
| Brand | BEYOND |
| Material | Micro-Grain Tungsten Carbide (HRC60 Hardness) |
| Point Angle | 140° (Optimized for Micro Drilling) |
| Flute Length | 5 x Diameter (5xD) |
| Coolant System | Internal Coolant Holes (Through-Tool) |
| Shank Type | Straight Shank (Coolant Through Holes) |
| Diameter Range | 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 2.95mm |
| Recommended Coolant Pressure | 15-25 bar (Minimum 12 bar required) |
Technical Cutting Parameters for Micro Drilling:
Optimized for internal coolant holes applications in precision materials
| Material Type | Cutting Speed (RPM) | Feed Rate (mm/rev) | Coolant Pressure |
|---|---|---|---|
| Stainless Steel | 8,000 - 12,000 | 0.008 - 0.02 | 18-25 bar |
| Titanium Alloys | 6,000 - 10,000 | 0.006 - 0.015 | 20-25 bar |
| Aluminum Alloys | 12,000 - 18,000 | 0.015 - 0.03 | 15-20 bar |
| Tool Steels | 7,000 - 11,000 | 0.007 - 0.018 | 20-25 bar |
Micro Drilling Application Tips: Use high-precision collets with maximum grip strength. Implement peck drilling cycles with 0.5-1.0mm peck depth. Ensure coolant system is perfectly clean - use filters below 10 microns. Maintain consistent coolant pressure throughout operation. Regularly inspect coolant holes for blockage and tool runout - maximum 0.005mm recommended.
Micro Drilling Advantages:
Extended Micro Tool Life
Internal coolant holes prevent heat buildup in small diameters, significantly extending tool life in continuous micro drilling operations.
Superior Hole Quality
Continuous coolant flow through precision holes ensures excellent surface finish and dimensional accuracy in micro hole applications.
Effective Chip Evacuation
High-pressure coolant through internal holes effectively removes micro chips from deep holes, preventing clogging and breakage.
Optimized Coolant Delivery
Precisely positioned coolant holes deliver coolant exactly where needed for maximum cooling efficiency at the cutting edge.
Precision Applications:
- Medical Device Manufacturing: Surgical instrument holes, implant fixation points, and micro fluid channels
- Aerospace Components: Fuel injection nozzles, sensor mounting holes, and lightweight structural holes
- Electronics Industry: Heat sink mounting holes, connector pin holes, and micro component assembly
- Watch & Jewelry Making: Precision timepiece components, jewelry settings, and micro mechanical parts
- Mold & Die Industry: Micro ejector pin holes, vent holes, and cooling channels in small molds
- Automotive Electronics: Sensor housings, connector blocks, and micro hydraulic components
Recommended Setup Requirements:
- High-Speed CNC Machining Centers (20,000+ RPM capability)
- Through-Spindle Coolant Systems with Internal Coolant Holes (15-25 bar pressure)
- Precision Collet Chucks with Coolant Seals (Maximum 0.005mm runout)
- Micro Filtration Systems (5-10 micron filters)
- High-Precision Tool Presetters
- Rigid Machine Construction
Why BEYOND Internal Coolant Holes Micro Drills Excel:
The BEYOND 2.0-2.95mm Internal Coolant Holes 5D series represents the pinnacle of micro drilling technology. Our proprietary manufacturing process ensures perfect coolant holes geometry in these small diameters, providing reliable cooling where it matters most. The combination of HRC60 substrate, 140° point angle, and advanced internal coolant holes delivers unprecedented performance in precision applications. Each micro drill undergoes rigorous testing for coolant holes flow, straightness, and cutting performance, ensuring reliable operation in your most critical micro drilling applications.
BEYOND Tools – Precision Cooling Holes for Micro Manufacturing Excellence.
Need Help With BEYOND Inserts?
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Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.