Product

TiN Coated HSS-E Spiral Flute Tap

hsse spiral fluted tap coated TiN

Premium HSSE Machine Taps for Blind Holes

Spiral Flute Tap Coated TiN

Material: HSS M2 / HSS-E (M35 Cobalt
Coating: TiN Golden
Standard: DIN 371 / DIN 376 / ANSI / JIS / ISO
Thread Tolerance: 6H (Standard), H1/H2/H3 (Custom)
Application: Blind Holes— Internal Threading
Thread Range: M2–M20 (Metric), UNC/UNF (Inch)

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Key Features & Benefits

  • Premium TiN Coating (Golden)
    High hardness (~2300 HV), low friction, heat resistance up to 400°C. Extends tool life, boosts wear resistance, and allows higher cutting speeds vs. uncoated taps.
  • 35° Spiral Flute Design
    Optimized geometry lifts chips upward and out of blind holes — prevents clogging, reduces tap breakage, and ensures clean, accurate threads.
  • High-Speed Steel (HSS/HSS-E)
    Premium M2/M35 cobalt HSS maintains hardness at high temperatures. For stable, long-lasting performance in steel, alloy steel, and stainless steel.
  • Fully Ground Precision
    Strict dimensional accuracy (6H), sharp cutting edges, smooth flushing. Delivers consistent thread quality and surface finish.
  • Versatile & Cost-Effective
    General-purpose performance across most steels. Ideal for CNC, automatic machines, and mass production.
    Suitable Materials

    ✅ Medium Carbon Steel (C45, S45C)

    ✅ High Carbon Steel

    ✅ Alloy Steel (SCM, Cr-Mo, etc.)

    ✅ Pre-Hardened Steel*

    ✅ Stainless Steel (SUS303/304/316 — mild)

    ✅ Cast Iron & Ductile Iron

    ✅ Copper & Brass Alloys*

    Technical Specifications
    Item Details
    Material HSS M2 / HSS-E (M35, 5% Co)
    Coating TiN (Titanium Nitride) — Golden
    Flute Angle 35° Right-Hand Spiral
    Flutes 3
    Chamfer 2.5P / 3P (Standard) — Blind Hole Type
    Accuracy 6H (ISO 2)
    Hardness HRC 63–66
    Standards DIN 371, DIN 376, ANSI B94.9, JIS B 0209
    Sizes Metric: M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20
    Thread Types M (Metric Coarse/Fine), UNC, UNF, BSW, BSF (on request)
    Hole Type Blind Holes (Through holes optional)
    Typical Dimensions
    Size Pitch Overall L (mm) Thread L (mm) Shank Dia (mm) Square (mm)
    M3 0.5 46 11 3.0 2.5
    M4 0.7 50 13 4.0 3.15
    M5 0.8 53 14 5.0 4.0
    M6 1.0 60 16 6.0 5.0
    M8 1.25 66 19 8.0 6.3
    M10 1.5 75 22 10.0 8.0
    M12 1.75 85 25 12.0 10.0
    Applications & Industries
    • Automotive & Transportation
    • Machinery & Hydraulic Parts
    • Mold & Die Making
    • 3C Electronics & Consumer Goods
    • Aerospace & Precision Components
    • Metal Fabrication & General Engineering
    Why Choose Our TiN Spiral Flute Taps?
    1. Longer Tool Life : TiN coating + HSS-E = 2–3x life vs. uncoated taps.
    2. Smooth Chip Evacuation : 35° spiral eliminates clogging in blind holes.
    3. High Precision : Fully ground to 6H for consistent, reliable threads.
    4. Wide Material Compatibility : One tap for most steels and alloys.
    5. Cost Efficiency : Reduces tool changes, boosts productivity.
    Packaging : Plastic Tube / Box (10pcs/pack)
    MOQ : 100pcs per size
    Supply Ability : 50,000pcs/month
    Lead Time : 7–15 days
    OEM / ODM : Welcome (Custom Logo, Packaging, Specifications)
    Ideal for : CNC machining, automatic lathes, mass production, blind-hole threading in steel, alloy steel, and stainless steel.