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ST.TTN.F4.30.6.090.50.I.HRC
ST.TTN.F4.30.6.090.50.I.HRC - Image 2

ST.TTN.F4.30.6.090.50.I.HRC

3.0mm 4-Flute Square (Flat) Carbide End Mill for Steel
FLATCOAT® TTN Coating, Reach: 9.0mm Shaft: 6mm.
Sentinel 67 HF Series

Original price was: $158.99.Current price is: $131.99.

Available on backorder

SKU: ST.TTN.F4.30.6.090.50.I.HRC Category: Tags: , , Brand:
  • Milling Material
    Cast Iron, Nichrome, Stainless Steel, Steel, Tough/Adhesive Material, Tungsten Copper
    Tool Type
    End Mill
    Coating Type (CT)
    FLATCOAT® TTN Titanium Coating
    Cutting Geometry (CG)
    Square (Flat)
    Flutes
    4
    Cutting Diameter (CD)
    3.0mm
    Cutting Diameter Tolerance
    -0.01
    Corner Radius (CR)
    0.15mm
    Corner Radius Tolerance
    0.005/-0.005
    Flute Length (FL)
    4.00mm
    Reach Length (RL)
    9.0mm
    Neck Diameter (ND)
    2.95mm
    Overall Length (OL)
    50mm
    Shank Diameter (SD)
    6mm
    Shaft Tolerance
    H4
    Special Tool Series
    The Sentinel 67 HF Series, The Sentinel 67 Series
    Measurement Protocol (to 1 Micron)
    No
    Zecha SKU
    599.HF4.0300.009.090
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  • SentinelHFProductHeader

    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.

    FcTtnSurface

    FLATCOAT® TTN COATING

    NlTtnSurface

    STANDARD TTN COATING

    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.