INDUSTRIAL
ST.TTN.F6.50.6.150.50.I.HRC
5.0mm 6-Flute Square (Flat) Carbide End Mill for Steel
FLATCOAT® TTN Coating, Reach: 15.0mm Shaft: 6mm.
Sentinel 67 HF Series
The Sentinel 67 HF subseries is the high-feed specialist in our ST Sentinel 67 Series lineup. Specifically designed for rapid material removal in hardened steels up to 67 HRC, these tools excel in dynamic, high-efficiency milling strategies. Perfect for mold and die applications where speed and precision are equally critical.
Next-Gen High-Feed Geometry
The Sentinel 67 HF subseries features a newly developed high-feed geometry designed for maximum chip thinning and ultra-efficient material removal. With a specialized cutting edge and shallow radial engagement, these tools redirect cutting forces axially—minimizing deflection while allowing aggressive feed rates. This optimized design enables faster machining without compromising tool life or part accuracy, especially in hardened steels up to 67 HRC. If you're looking to slash cycle times and push your machines to the next level, this is your high-feed solution.
For tips and tricks on how to use the new HF tools, check out the video below from our mother company ZECHA:
FLATCOAT® TTN COATING
Designed for ultra-hard materials, our FlatCoat® TTN multilayer coating delivers maximum thermal stability, wear resistance, and smooth chip flow. It outperforms standard TiN coatings thanks to its advanced layer structure, which resists peeling and abrasion—even at high speeds. Less heat, less wear, more performance.
PREMIUM CARBIDE, 100% QUALITY CONTROL CHECK
Every ST Sentinel 67 tool is made from high-performance, ultra-fine grain carbide and undergoes 100% inspection. From geometry to balance, nothing escapes scrutiny. This ensures you get tools that perform with tight tolerances, superior durability, and zero surprises—even under high-speed, high-load conditions.
CLEANER MILLING RESULTS, LONGER LIFETIMES #MILLMOREUNITS
The Sentinel 67 HF subseries brings together rugged geometry, flawless carbide, total quality control, and next-gen coating to deliver serious results in high-feed milling. Expect faster cycle times, extended tool life, and reduced tool changes—your recipe for productivity in hardened steel.