Metric Thread Forming Taps|Fluteless Tap
Product Overview
Our HSS-E Extrusion Taps (Thread Forming Taps)are engineered from high-speed steel with 5%-8% cobalt alloy (HSS-E / HSSE), designed to create flawless internal threads through cold extrusion (material forming) instead of cutting. This advanced process displaces metal to form threads, producing stronger, smoother, and more precise threads with zero chips. Ideal for high-volume, high-precision machining across automotive, aerospace, electronics, and precision engineering industries.
Key Material Superiority: HSS-E (High-Speed Steel + Cobalt)
Extreme Hot Hardness: Retains high hardness at elevated temperatures (red hardness) for high-speed & continuous operation
Super Wear Resistance: 3–5x longer tool life vs. standard HSS taps -
High Toughness: Resists chipping, breaking, and deformation under heavy machining forces
Excellent Heat Dissipation: Minimizes thermal wear & workpiece damage
Core Advantages of HSS-E Extrusion Taps
1. Chip-Free Machining
No swarf, no clogging: Eliminates chip removal issues in blind/through holes - Prevents tool breakage from chip jamming
Ideal for automated & CNC mass production
2. Stronger, Higher-Quality Threads
20–30% higher thread strength via work-hardening effect
Smoother surface finish** (Ra ≤ 3.2μm) & tighter dimensional accuracy -
ISO 2/3 Class thread precision & consistent quality
3. Longer Tool Life & Lower Cost
3–5x lifespan vs. traditional cutting taps -
Fewer tool changes: reduces downtime & labor costs -
Cost-effective for high-volume production
4. Wide Material Compatibility Perfect for:
Stainless steel (304/316)
Carbon steel & alloy steel(up to HRC 45)
Aluminum & aluminum alloys
Copper, brass & non-ferrous metals
Low-carbon steel & ductile materials
5. High Efficiency
30–50% higher cutting speeds vs. standard HSS
Stable torque for CNC/automatic lathes
Suitable for blind & through holes
Technical Specification
Thread Size (Metric) | Pitch (mm) | Tolerance Class | Bottom Hole Diameter (mm) | Overall Length (L, mm) | Shank Diameter (Ds, mm) | Shank Square ( mm) |
M2 | 0.4 | ISO 2X 6HX | 1.65 | 45 | 2 | 1.8 |
M3 | 0.5 | ISO 2X 6HX | 2.5 | 56 | 3 | 2.7 |
M4 | 0.7 | ISO 2X 6HX | 3.3 | 63 | 4 | 3.4 |
M5 | 0.8 | ISO 2X 6HX | 4.2 | 70 | 5 | 4.9 |
M6 | 1.0 | ISO 2X 6HX | 5.0 | 80 | 6 | 4.9 |
M8 | 1.25 | ISO 2X 6HX | 6.8 | 90 | 8 | 6.2 |
M10 | 1.5 | ISO 2X 6HX | 8.5 | 100 | 10 | 8.0 |
M12 | 1.75 | ISO 2X 6HX | 10.2 | 110 | 12 | 7.0 |
M14 | 2.0 | ISO 2X 6HX | 12.0 | 110 | 14 | 9.0 |
M16 | 2.0 | ISO 2X 6HX | 14.0 | 110 | 16 | 9.0 |
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Technical Specifications
Material: Premium HSS-E (M35/M42 grade, 5%–8% cobalt)
Hardness: HRC 65–68 (core); HRC 68–70 (coated)
Coating Options:
TiN (Titanium Nitride): Gold, general-purpose, high wear resistance -
TiCN (Titanium Carbonitride): Dark gray, higher hardness & lower friction
TiAIN (Titanium Aluminum Nitride): Black, high-temperature machining
Uncoated: For stainless steel & high-strength alloys
Standards: DIN 371 / DIN 376 / ANSI B94.9 -
Thread Types: Metric (M), UNC, UNF, fine pitch
Sizes: M1 ~ M24 (custom sizes available)
Shank: Square (standard), precision ground for secure clamping
Standard: Plastic tube / plastic box
Custom: Blister pack, color box, branded packaging (OEM)
Worldwide shipping: DHL / FedEx / UPS / Sea freight
Ordering Information
MOQ: 10–50 pcs (depends on size) -
Lead time: 7–15 days (standard); 15–25 days (custom) -
Sample policy: Samples available upon request ---
Elevate your threading efficiency & quality with our HSS-E Extrusion Taps—your ideal partner for precision, speed, and cost-effective mass production.
Customization Support
Special thread sizes (metric, UNC, UNF, NPT, custom pitches)
Custom coatings (TiN, TiCN, TiAIN, DLC, etc.)
Special geometries (blind hole, through hole, deep hole, reduced neck)
OEM branding: Laser engraving, private labeling, custom packaging
Contact us today for catalog, pricing, or custom solutions!
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