140 Degree Carbide Step Drill Inner Coolant Straight Flute Drill
| Attribute | Value |
|---|---|
| Name | Carbide Step Drill |
| Type | Customized end mill |
| Material | Carbide |
| Number of flute | 2 |
| Flute type | Straight flute |
| Application | Cast iron, steel, stainless steel, inconel 718, etc |
| Shank Type | Straight shank |
| Size | Various sizes available |
| Cutting Angle | 140 degrees or customized |
| OEM | Yes |
This high-performance solid carbide step drill bit features a 140° point angle and straight flutes, optimized for precision drilling in CNC machining. The internal coolant channels enhance heat dissipation, extend tool life, and improve chip evacuation in demanding materials like stainless steel, hardened steel, cast iron, and aerospace alloys.
- Material: Solid carbide (ultra-hard, wear-resistant)
- Point Angle: 140° for reduced thrust force and improved centering
- Flute Design: Straight flutes for efficient chip removal in deep holes
- Coolant System: Inner coolant holes (through-tool coolant) to reduce heat and prevent workpiece/tool damage
- Application: CNC machining, mold making, automotive/aerospace parts, and high-precision multi-step drilling
- Coating Options: Optional TiAlN/AlCrN coatings for higher heat resistance
- Longer tool life due to carbide durability and coolant support
- High rigidity minimizes deflection in deep holes
- Multi-diameter steps allow graduated hole sizing in one operation
- Drilling, chamfering, and deburring in one pass
- Hard materials (HRC 45+), composites, and exotic alloys
- Free Test Samples: Get free samples (total value ≤ $20 USD) when you cover the international shipping cost. Perfect for evaluating our product quality and performance risk-free.
- $50 USD Discount: 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!
We usually send goods by express like FedEx, UPS, DHL, TNT, EMS, etc. We can also send products to your shipping agent in China.
For stock items, we can dispatch within 2 business days after receiving payment. For out-of-stock items, delivery time depends on quantity, typically 5-7 business days.
Yes, we can provide OEM services.
Our factory is in Changzhou City, Jiangsu Province, China, approximately 1 hour from Shanghai by High-Speed Train.
Yes, we can produce special carbide tools according to your drawings or samples. We can also design tools based on your workpiece specifications.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.