2 Flute Carbide Step Drill Bit Straight Flute Uncoated Coolant Through Hole For Steel Metalworking Cnc Machining Centers

Introduction:

This precision carbide step drill features a 2-flute straight-flute design with internal coolant channels for efficient chip evacuation and cooling during deep-hole drilling operations. Manufactured from high-grade micro-grain carbide, this uncoated drill bit delivers exceptional rigidity and wear resistance for machining steel, stainless steel, and other tough metals in CNC machining centers.

Features:

✔ Premium Micro-Grain Carbide Construction

• Superior hardness and heat resistance compared to HSS or coated drills

• Maintains sharp cutting edges longer in abrasive materials

✔ Optimized Straight Flute Design (2 Flutes)

• Provides excellent stability and reduces vibration

• Ideal for rigid setups and precise hole positioning

✔ Internal Coolant Through (ICT) System

• Directs high-pressure coolant to the cutting edge

• Extends tool life by reducing heat buildup

• Improves chip evacuation in deep-hole drilling

✔ Step Drill Geometry

• Multiple diameters in single tool for efficient machining

• Eliminates need for tool changes when creating stepped holes

• Suitable for chamfering and deburring in same operation

✔ Uncoated Cutting Edges

• Optimized for applications where coatings may flake or chip

• Can be re-sharpened multiple times

Advantages:

Longer Tool Life - Carbide construction withstands higher temperatures than HSS

Improved Productivity - Combines drilling and chamfering in single operation

Better Surface Finish - Straight flute design produces excellent hole quality

Cost Effective - Uncoated version offers excellent value for general applications

Applications:

• Materials: Carbon steel, alloy steel, stainless steel (304/316), cast iron, non-ferrous metals

• Operations:

  • Deep hole drilling (with coolant through)

  • Stepped hole drilling (multiple diameters)

  • Chamfering and countersinking

  • Precision hole machining in CNC centers

• Industries:

  • Automotive component manufacturing

  • Mold and die making

  • General metalworking

  • Aerospace part production

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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