High Speed Uncoated Carbide Step Drill Extra Long Life No Coating
for Sharp Cutting CNC Use
Introduction:
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.
Features:
✔ 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.
Advantages:
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.
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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