4-, 5-, and 6-flute solid carbide 90º end mills

The PrimoSS‑V and PrimoSS‑H ends mills from Ingersoll Cutting Tools expands its PrimoLine of solid carbide milling solutions. The tools with PrimoSS‑V and PrimoSS‑H, two premium 90º end mill products engineered to maximize performance, stability, and productivity in stainless steel machining. Together, these tools provide manufacturers with versatile options for both general‑purpose milling and high‑efficiency machining (HEM) in demanding applications where tool control and heat management are critical.

PrimoSS‑V is an exceptional 4‑flute solid carbide end mill designed to deliver reliable performance across a wide range of stainless steel operations. Its advanced geometry incorporates variable pitch and variable helix to effectively disrupt vibrations, particularly in long‑reach applications, resulting in improved surface finish and extended tool life. With a 2xD maximum depth of cut and up to 4xD usable length, PrimoSS‑V offers the reach and flexibility needed to machine deeper features while maintaining accuracy and stability. Integrated coolant thru capability further enhances chip control and evacuation, reducing heat buildup and enabling more consistent cutting conditions.

Complementing this versatility, PrimoSS‑H offers 5 and 6‑flute solid carbide end mills optimized for high‑efficiency machining of stainless steel. Its chip splitter cutting edge delivers superior chip management while minimizing vibration and heat generation, making it ideal for aggressive material removal strategies. Combined with variable pitch and variable helix geometry, PrimoSS‑H maintains exceptional stability in extended reach applications. Depth‑of‑cut options ranging from 2xD to 4xD provide deep reach capability while supporting higher metal removal rates. Coolant‑through design further improves thermal control and chip evacuation, allowing shops to push productivity with confidence.