Uncoated Carbide Step Drill High Speed CNC Drill Bits Customized Extra Long Life
| Attribute | Value |
|---|---|
| Product name | Carbide Step Drill |
| Material | Tungsten carbide |
| Application | Aluminium, cast iron, steel, Inconel 718, titanium, etc |
| Coating | Uncoated (optional TiAlN for steel) |
| Helix | Customized |
| Precision | h6 |
High Speed Uncoated Carbide Step Drill Extra Long Life No Coating for Sharp Cutting CNC Use
Our High-Speed Uncoated Carbide Step Drill is engineered for precision and durability in demanding machining applications. Made from solid tungsten carbide (WC) without coatings, this step drill delivers exceptional sharpness, heat resistance, and extended tool life — ideal for high-speed CNC operations and manual use.
- Solid Tungsten Carbide Construction - Superior hardness (90-94 HRA) for wear resistance in hardened materials.
- Uncoated Design - Ensures razor-sharp cutting edges, reducing friction and material buildup (ideal for non-ferrous metals).
- High-Speed Performance - Optimized flute geometry for efficient chip evacuation at elevated RPMs.
- Multi-Diameter Steps - Single bit replaces multiple drill sizes (e.g., 4-12mm range in one tool).
- CNC & Handheld Compatible - Precision-ground for stability in CNC machines or handheld drills.
- Extra Long Tool Life - Carbide's heat resistance minimizes wear, even in continuous operation.
- No Coating = Sharper Cuts - Avoids edge rounding common with TiN/TiAlN coatings, critical for fine finishes.
- Better for Sticky Materials - Prevents aluminum/copper from adhering to flutes.
- Cost-Effective - Uncoated carbide lasts longer than HSS while being cheaper than coated carbide.
- Metalworking: Drilling stainless steel, aluminum, brass, and thin sheet metal.
- Electronics: Precise holes in PCBs, fiberglass, and ceramic substrates.
- Automotive/Aerospace: Lightweight alloy machining and deburring.
- DIY & Maintenance: Versatile use for HVAC, plumbing, and repairs.
Get free samples (total value ≤ $20 USD) when you cover the international shipping cost. Perfect for evaluating our product quality and performance risk-free.
New customers can enjoy a $50 discount on the first order of $500 or more. A great way to start our partnership with extra value!
- Advanced grinding machines: All of our grinding machines are WALTER and SAACKE brands.
- Advanced inspection machines: We have ZOLLER, OMEGA, PG1000, etc. for inspecting each carbide tool.
- Fast feedback: We offer 24 hours online service.
- Strict quality control system: We strictly adhere to a three-stage inspection process for each tool: raw material inspection, semi-finished product inspection after production, and final inspection after coating (pre-shipment check).
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.