Solid Carbide Step Drill Bit High Speed Multi Diameter Tool for
Metal Stainless Steel Aluminum 2/3/4/5/6mm Steps
Introduction:
This solid carbide step drill bit is a precision-engineered cutting tool designed for high-speed multi-diameter drilling in metals, including stainless steel, aluminum, and alloy steels. Its unique step design (2/3/4/5/6mm) allows for smooth hole enlargement in a single operation, eliminating the need for multiple drill bits. Made from ultra-hard tungsten carbide, it delivers superior wear resistance and extended tool life even
in demanding machining conditions.
Features:
✔ Solid Carbide Construction – Exceptional hardness and heat resistance for long-lasting
performance.
✔ Multi-Diameter Steps (2/3/4/5/6mm) – Drill and chamfer holes in one pass, saving time and tool
changes.
✔ High-Speed Capable – Optimized flute design for efficient chip evacuation in CNC and
manual drilling.
✔ 135° Split Point Tip – Reduces walking and ensures precise hole starts.
✔ Polished Surface Treatment – Minimizes material adhesion (especially for aluminum).
Advantages:
✅ Reduced Cycle Times - Combines multiple operations into one tool path
✅ Exceptional Hole Quality - Produces burr-minimized holes with precise diameters
✅ Improved Process Stability - 3-flute design eliminates chatter in automated applications
✅ Extended Tool Life - Carbide substrate withstands high-temperature machining
✅ Space-Saving Design - Replaces multiple conventional drills in your tool magazine
Applications:
Detailed Pictures:
Our workshop:
New Customer Special Offers:
To help you experience our premium products, we’re excited to offer
the following exclusive promotions for first-time buyers:
1.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.
2.$50 USD Discount on First Order
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!
Our advantages:
1.Advanced grinding machines: All of our grinding machines are WALTER and SAACKE brands.
2.Advanced inspection machines: We have ZOLLER, OMEGA, PG1000, etc. For inspecting each carbide
tools.
3.Fast feedback: we offer 24 hours online service
4.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
Final inspection after coating (pre-shipment check)
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