Binary step drill
Thanks to their unique stepped design and optimization for the properties of aluminum, aluminum-cutting drill bits offer significant advantages in terms of efficiency, precision, and cost-effectiveness, making them the ideal tool for machining aluminum and its alloys. Widely used in industries such as aerospace, automotive manufacturing, electronics, and mold machining that require multi-stage hole drilling. Suitable for shallow holes, high-speed drilling, or applications requiring high-precision positioning. Step drills have become a top choice in modern manufacturing due to their high precision, high efficiency, and long service life, significantly improving machining quality and productivity.
| Part Number | DT18050C |
|---|---|
| Material | Ultrafine-grain tungsten carbide alloy |
| Product Name | Cemented Carbide Drill Bit / High-Performance Drill Bit |
| OEM / ODM | Made to your samples or drawings |
| Specifications | Ø5.2 × Ø8.0 × Ø8.0 × 69L |
| Lead time | 2 weeks |
| Packaging (mm) | 10 × 10 × 90mm |
| Blade Diameter DC | Ø5.0mm × Ø8.0 |
| Blade Length LCF | 20.0mm |
| Shank Diameter DC | Ø6.0mm |
| Overall length OAL | 61.0mm |
| Materials | VHM (ultrafine-grained tungsten carbide alloy) |
| Coating | AlTiN |
| MOQ | 2 pcs |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Carbide-tipped stepped aluminum drill bits are commonly used in industries with high hole quality requirements, such as aerospace, automotive parts manufacturing, and mold machining. They are an ideal choice for machining shallow holes that require high precision.
The DSR30 series is composed of an ultra-fine-grained tungsten carbide alloy matrix. Its sharp, smooth cutting edges reduce cutting resistance, making it well-suited for aluminum—which has a moderate hardness—and ensuring smooth cutting.
The DSR30 series quickly removes the large amounts of aluminum chips generated during machining, preventing chip jams or overheating and improving stability. It reduces vibration and tool wear while improving surface finish.
The DSR30 series features a superior design tailored to aluminum machining environments, minimizing oxidation and corrosion on the tool surface. It delivers efficient and precise cutting performance for rough machining.
A five-axis grinding machine from Walter (Germany) was selected for the grinding process. Its guidance system minimizes vibration during machining, ensures smoother cutting, and delivers outstanding performance in high-speed machining.
Its unique design offers many advantages. It provides excellent guidance during cutting, which helps maintain the roundness and straightness of the hole and improves machining quality.
Multiple-diameter stepped holes can be machined in a single operation, eliminating the need for multiple tool changes or repetitive processes and improving machining efficiency.
It is not only suitable for pure aluminum, but can also efficiently process light metal materials such as aluminum alloys and magnesium alloys.
Pre- and post-polishing processes reduce friction and ensure excellent chip management
Send your hole diameter, depth and workpiece material. We supply standard drills and custom step and special drills made to your samples or drawings.