HRC65 8D Internal Coolant Solid Carbide Drill Bit – 9.0–10.9mm carbide end milll
Price shown is a starting point. Contact us for a precise quote based on your requirements.
BEYOND HRC65 8D Internal Coolant Solid Carbide Drill Bit (9.0–10.9mm)
Brand: BEYOND
Hardness: HRC65
Type: 8D long-length solid carbide drill with internal coolant holes
Shank Type: Straight shank
Material: Ultra-fine grain carbide
Product Description
The BEYOND HRC65 8D internal coolant solid carbide drill bit (9.0–10.9mm) is engineered for high-precision, deep-hole drilling in hardened steel and other high-strength materials. Featuring dual internal coolant channels and ultra-fine carbide substrate, it delivers stable performance, superior chip evacuation, and exceptional tool life in high-speed CNC operations.
- 8D (8× diameter) long-length design for deep hole machining
- Internal coolant holes ensure smooth chip evacuation and cooling
- Hardness up to HRC65 – perfect for hardened steel, die steel, and mold steel
- Excellent dimensional accuracy and surface finish
- Suitable for CNC machining centers and precision production lines
Applications
Ideal for drilling operations on:
- Hardened steel (up to 65HRC)
- Die steel, tool steel, and alloy steel
- Stainless steel and cast iron
- Precision molds, automotive components, and aerospace parts
Available Sizes (9.0–10.9mm)
| Diameter (mm) | Flute Length (mm) | Total Length (mm) | Shank Diameter (mm) |
|---|---|---|---|
| 9.0 | 95 | 139 | 10 |
| 9.1 | 95 | 139 | 10 |
| 9.2 | 95 | 139 | 10 |
| 9.3 | 95 | 139 | 10 |
| 9.4 | 95 | 139 | 10 |
| 9.5 | 95 | 139 | 10 |
| 9.6 | 95 | 139 | 10 |
| 9.7 | 95 | 139 | 10 |
| 9.8 | 95 | 139 | 10 |
| 9.9 | 95 | 139 | 10 |
| 10.0 | 95 | 139 | 10 |
| 10.1 | 114 | 163 | 12 |
| 10.2 | 114 | 163 | 12 |
| 10.3 | 114 | 163 | 12 |
| 10.4 | 114 | 163 | 12 |
| 10.5 | 114 | 163 | 12 |
| 10.6 | 114 | 163 | 12 |
| 10.7 | 114 | 163 | 12 |
| 10.8 | 114 | 163 | 12 |
| 10.9 | 114 | 163 | 12 |
Why Choose BEYOND Carbide Drills?
- Manufactured with advanced CNC grinding technology
- Precision-balanced for stable, high-speed cutting
- Strict quality control and ISO-certified production
- Custom specifications and coatings available
Keywords: HRC65 carbide drill, 8D internal coolant drill, 9mm carbide drill, 10mm carbide drill, deep hole solid carbide drill, CNC drilling tool, hardened steel drill bit, BEYOND carbide cutting tools.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.