Audited Supplier
Solid Carbide 2 Flutes Coolant Hole Long Carbide Drill Bits HRC55
Carbide Internal Coolant Drill - Precision, Durability & Tailored Solutions
Superior Wear & Impact Resistance
Crafted from premium carbide sourced from internationally recognized brands, our drill delivers outstanding wear and impact resistance. It is engineered for challenging machining conditions, ensuring consistent performance and an extended service life.
Efficient Cooling & Chip Evacuation
Our drill features an advanced internal coolant system that effectively minimizes heat buildup, enhancing cutting stability. The carefully optimized chip flute design promotes smooth chip evacuation, reducing the risk of clogging and boosting overall machining efficiency.
Ready Stock & Customization Options
With a wide range of standard sizes in stock, we guarantee prompt delivery to meet your production needs. Additionally, we offer customized solutions to address specific industry requirements, ensuring a high-performance tool that perfectly aligns with your unique applications.
Standard size specifications
| flute diameter | max.cutting depth | shank diameter | overall length |
| D3.00-D3.70 | 20 | 6 | 62 |
| D3.80-D4.70 | 24 | 6 | 66 |
| D4.80-D6.00 | 28 | 6 | 66 |
| D6.10-D7.00 | 34 | 8 | 79 |
| D7.10-D8.00 | 4 | 8 | 79 |
| D8.10-D10.0 | 47 | 10 | 89 |
| D10.1-D12.0 | 55 | 12 | 102 |
| D12.1-D14.0 | 60 | 14 | 107 |
| D14.1-D16.0 | 65 | 16 | 115 |
| D16.1-D18.0 | 3 | 18 | 123 |
| D18.1-D20.0 | 2 | 20 | 131 |
| D20.1-D22.0 | 96 | 25 | 146 |
| D22.1-D25.0 | 103 | 25 | 153 |
MAX 50D
| ITEM | Flute diameter | Max.cutting depth | Flute length | Overall length | Shank length | Shank diameter |
| RDS50030-1 | 3.0 | 166 | 171 | 215 | 36 | 6 |
| RDS50035-1 | 3.5 | 186 | 192 | 235 | 36 | 6 |
| RDS50040-1 | 4.0 | 208 | 214 | 255 | 36 | 6 |
| RDS50045-1 | 4.5 | 233 | 240 | 283 | 36 | 6 |
| RDS50048-1 | 4.8 | 259 | 267 | 310 | 36 | 6 |
| RDS50050-1 | 5.0 | 259 | 267 | 310 | 36 | 6 |
| RDS50055-1 | 5.5 | 308 | 317 | 358 | 36 | 6 |
| RDS50060-1 | 6.0 | 308 | 317 | 358 | 36 | 6 |
| RDS50061-1 | 6.1 | 337 | 347 | 389 | 36 | 8 |
| RDS50065-1 | 6.5 | 337 | 347 | 389 | 36 | 8 |
| RDS50068-1 | 6.8 | 357 | 368 | 409 | 36 | 8 |
| RDS50070-1 | 7.0 | 357 | 368 | 409 | 36 | 8 |
| RDS50074-1 | 7.4 | 388 | 400 | 441 | 36 | 8 |
| RDS50075-1 | 7.5 | 388 | 400 | 441 | 36 | 8 |
| RDS50080-1 | 8.0 | 410 | 422 | 462 | 36 | 8 |
| RDS50083-1 | 8.3 | 441 | 454 | 500 | 40 | 10 |
| RDS50085-1 | 8.5 | 441 | 454 | 500 | 40 | 10 |
| RDS50090-1 | 9.0 | 466 | 480 | 525 | 40 | 10 |
Note:
1.Non-standard products are available according to customer's drawing or customer's sample .
2.We also design and manufacture products,according to the request of customer's.
3.We offer a wide range of Internal Coolant Drills in various specifications, with standard models readily available in stock. These include both general-purpose and stainless steel-specific options, with diameters ranging from D3 to D25mm. The drills come in lengths of 3D, 5D, 8D, and 12D, with a 0.1mm incremental variation between sizes. For more details, please contact our sales team.
| Guhring(K44UF,DK460UF) | from | Germany |
| Kennametal | from | America |
| CERATIZIT(CTU08L,TSF22,TSF44) | from | LUXEMBOURG |
| GESAC(GU20,GU20F,GU25UF) | from | xiame China |
| CB(WF25,K200,K100,TF25,WF03,WF30) | from | Taiwan |
| Zigong(ZK30,ZK40) | from | Zigong China |
| Zhu zhou | from | Zhuzhou China |
Delevel uses only alloy rods from well-known brands, both domestic and international. We guarantee that all materials are 100% sourced from original manufacturers, never recycled. This ensures the quality, high performance, and wear resistance of every tool, meeting the demands of precision machining for our customers.
Super coating
| Item | ALTiN | AlCr-based | TiSiN | AlCr-Blue |
| Hardness | 3100-3400 | 3100-3500 | 3300-3700 | 3300-3700 |
| Thickness | 1-2.5μ | 1-3μ | 2-3μ | 2-3μ |
| Oxidation Temp | 900-1000 | 900-1100 | 900-1000 | 900-1000 |
| Friction coefficient | 0.3 | 0.35 | 0.4 | 0.35 |
| Color | Black | Bright grey | Copper | Colorful Blue |
CHANGZHOU DELEVEL TOOLS CO.,LTD is the leading manufacturer for carbide cutting tools supplier in China,we can produce carbide deep hole inner-cooling drills,end mills,reamers,thread milling cutters and other non-standard milling tools which are widely used in aerospace,automotive,motorcycle,medical treatment and mould processing.
As a Professional & Industrial Carbide cutting tools Supplier in China, we always make commitment to all clients:
1. More than 15 Years experience in solid carbide cutting tool industry;
2. 100% on-time delivery;
3. Consistency on quality and long-lasting innovation;
4. Customized production and Competitive price.
