CGS Tool EF-5 Tornado Series: High-Performance Carbide End Mills
Precision Milling with Strength and Stability
The EF-5 Series from CGS Tool is a 5-flute, 45° helix end mill line designed for exceptional performance in peripheral and finish milling operations. With a variable index geometry and heavy core design, these tools deliver improved stability, strength, and surface finishes across a wide range of materials and applications.
Key Features of the EF-5 Series
5-Flute Design with 45° Helix – Optimized for smooth cutting, chip evacuation, and vertical shear action.
Variable Index Geometry – Reduces chatter and vibration for superior surface quality.
Heavy Core Construction – Increases rigidity and minimizes tool deflection during aggressive cuts.
Flat Clearance Grind – Provides extreme cutting edge strength and enhanced tool life.
Coating Options:
ALTiN Coating available by adding “ALTIN” to the part number for thermal resistance and durability.
AlCrN and other coatings available upon request.
Custom Options – Special sizes, radii, and lengths available by quote.
Reduced Neck & Weldon Flats – Offered upon request for specialty applications.
Tool Styles Available
Square End Mills – Standard, stub, long length, and extended reach.
Corner Radius End Mills (CR) – Reinforced edges to reduce chipping and extend tool life.
Performance Benefits
High-Performance Finishing – Specifically designed for peripheral and finish milling.
Improved Surface Finishes – Achieved with flat clearance grind and helix design.
Maximum Stability – Heavy core geometry enhances rigidity, reducing deflection.
Extended Tool Life – Optimized geometry and coating options resist wear at high speeds.
Why Choose CGS Tool EF-5 Series?
Made in the USA from premium carbide with tight tolerances (+.000”/-.002”)
Engineered for precision, strength, and stability in demanding machining environments
Backed by CGS Tool’s custom tooling solutions for unique job requirements
Trusted by machinists worldwide for finish quality and reliability