Square End Mill
Square end mills are widely used carbide tools for CNC machining, designed for slotting, side milling, shoulder milling, and contouring. With a flat cutting edge, they deliver sharp corners and precise dimensional accuracy across a wide range of materials, including steel, stainless steel, cast iron, and non-ferrous metals.
Key technical features include optimized flute count (2F, 3F, 4F, and multi-flute designs), variable helix angles for chatter suppression, and high-performance PVD coatings to enhance wear resistance and thermal stability.
Our carbide square end mills offer excellent rigidity, stable chip evacuation, and extended tool life for roughing and finishing. Popular models include general-purpose, high-efficiency machining (HEM), and variable pitch end mills, with options for customized geometries, coatings, and dimensions to suit specific machining needs.
Speed Tiger is a leading manufacturer of carbide square end mills. Please explore our products below.
Square,4 Flute,End Mill for Plunge Milling
Features
- Superior Stability & Versatility: Unequal flute spacing, irregular helix angles, and drill-type grooves maximize vibration absorption and chip evacuation. Large end-face clearance enables high-speed drilling and milling, ensuring peak efficiency and stability.
- Enhanced Durability & High-Feed Performance: An eccentric relief angle strengthens the cutting edge, while optimized surface finishes ensure stable, high-feed rates. This robust design significantly extends tool life and maintains consistent performance.
Application
- Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, cast iron.
Square,4 Flute,End Mill for Slotting Side Milling
Features
- Variable Geometry for Stability: Unequal flute spacing and a unique helical design minimize vibration, outperforming traditional tools. The 40° helix angle enables a single tool to excel in both roughing and finishing for versatile, all-around performance.
- Reinforced Structure & Long Life: An eccentric relief angle strengthens the cutting edge to support stable high feed rates and extend tool life. Its superior stability is ideal for contouring, ensuring durability and excellent surface finish.
Application
- Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel.
Square,4 Flute,End Mill for Slotting Milling Reinforcement
Features
- Stability & High Efficiency: The unequal flute spacing and 35/38° variable helix design effectively suppress vibration, allowing high-speed machining of steel and cast iron while significantly extending tool life.
- Versatile Geometry for Heavy Feed: An eccentric relief angle strengthens the cutting edge to support stable, high-feed rates. Optimized chip space and a center-cutting edge make it ideal for high-performance slotting and ramp milling.
Application
- Excel at working cast iron, carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel.
Square,4 Flute,Anti-Vibration End Mill for Stainless Steel
Features
- High-Efficiency Anti-Vibration Geometry: Featuring unequal flute spacing and a large chip removal design, this series excels in slotting and ramp milling. The optimized geometry ensures efficient chip disposal and stability for high-speed machining.
- Advanced ZrN-A Nano-Coating: This nano-level coating provides extreme hardness and anti-sticking properties. It ensures stable tool life and excellent wear resistance, solving the challenges of unstable performance in stainless steel and difficult materials.
Application
- Excel at stainless steel, carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45).
Square,4 Flute,End Mill for Exotic Materials
Features
- Reinforced Edge & Tip Geometry: A dual-rake design with a protective chamfer balances strength and sharpness. It effectively distributes cutting forces and heat to prevent chipping in Titanium and Inconel, ensuring maximum stability and extended life in tough superalloys.
- Superior Evacuation & Stability: Optimized flute geometry and unequal spacing improve chip flow while suppressing vibration. By reducing cutting resistance and chatter, this design ensures stable machining and consistent performance in heat-resistant materials.
Application
- Excel at Titanium and Inconel.