TiN Coated HSS-E Spiral Flute Tap 

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)  Inquire Now

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.