| Size | Pitch | TPI | ThreadClass | Thread Length | Overall Length | Neck Length | Shank Diameter | Square Size | Square Length | No. of Flute | Tapping Drill Dia |
|---|
| ØD1 | P | - | Limit | L1 | L2 | L3 | ØD2 | K | Kl | Z | Ød1 |
|---|
| M2 | 0.4 | - | 6HX | 8 | 45 | 13 | 2.8 | 2.1 | 5 | 5 | 1.83 |
| M2.2 | 0.45 | - | 6HX | 8 | 45 | 13 | 2.8 | 2.1 | 5 | 5 | 2 |
| M2.5 | 0.45 | - | 6HX | 9 | 50 | 15 | 2.8 | 2.1 | 5 | 5 | 2.3 |
| M2.3 | 0.4 | - | 6HX | 8 | 45 | 13 | 2.8 | 2.1 | 5 | 5 | 2.1 |
| M3 | 0.5 | - | 6HX | 11 | 56 | 18 | 3.5 | 2.7 | 6 | 5 | 2.8 |
| M3.5 | 0.6 | - | 6HX | 12 | 56 | 20 | 4 | 3 | 6 | 5 | 3.25 |
| M4 | 0.7 | - | 6HX | 13 | 63 | 21 | 4.5 | 3.4 | 6 | 5 | 3.7 |
| M4.5 | 0.75 | - | 6HX | 14 | 70 | 25 | 6 | 4.9 | 8 | 5 | 4.15 |
| M5 | 0.8 | - | 6HX | 15 | 70 | 25 | 6 | 4.9 | 8 | 5 | 4.65 |
| M6 | 1 | - | 6HX | 17 | 80 | 30 | 6 | 4.9 | 8 | 5 | 5.55 |
| M7 | 1 | - | 6HX | 17 | 80 | 30 | 7 | 5.5 | 8 | 5 | 6.55 |
| M8 | 1.25 | - | 6HX | 20 | 90 | 35 | 8 | 6.2 | 9 | 5 | 7.4 |
| M9 | 1.25 | - | 6HX | 20 | 90 | 35 | 9 | 7 | 10 | 5 | 8.4 |
| M10 | 1.5 | - | 6HX | 22 | 100 | 39 | 10 | 8 | 11 | 5 | 9.3 |
| M11 | 1.5 | - | 6HX | 22 | 100 | 40 | 8 | 6.2 | 9 | 5 | 10.3 |
| M2.6 | 0.45 | - | 6HX | 9 | 50 | 15 | 2.8 | 2.1 | 5 | 5 | 2.4 |
| M12 | 1.75 | - | 6HX | 24 | 110 | 44 | 9 | 7 | 10 | 5 | 11.2 |
| M14 | 2 | - | 6HX | 26 | 110 | 44 | 11 | 9 | 12 | 5 | 13 |
| M16 | 2 | - | 6HX | 27 | 110 | 44 | 12 | 9 | 12 | 6 | 15 |
| M18 | 2.5 | - | 6HX | 30 | 125 | 50 | 14 | 11 | 14 | 6 | 16.8 |
| M20 | 2.5 | - | 6HX | 32 | 140 | 54 | 16 | 12 | 15 | 6 | 18.8 |
DIN2174 HSSE‑Co5% Forming Tap follows DIN2174 European standard. Made of HSSE‑Co5% 5‑percent cobalt high‑speed steel, this roll forming tap adopts chip‑less thread‑forming technology. Instead of cutting away workpiece material, it displaces metal to shape internal threads, resulting in denser, higher‑strength thread structure.
Equipped with special oil groove design, which facilitates the flow of tapping lubricant into the threading zone for effective cooling and lubrication. The premium TiCN coating features high hardness and low friction coefficient, lowering heat generation, resisting abrasion and extending tool service life. Lead point and transition taper ensure smooth entry into pre‑drilled holes for stable forming performance. Suitable for both through‑hole and blind‑hole tapping on ductile metals for industrial CNC batch production.
Core Specifications
Industry Standard: DIN2174
Base Material: HSSE‑Co5% (5% Cobalt High‑Speed Steel)
Tool Type: Thread Forming Tap (Roll Tap)
Surface Coating: TiCN Coating
Feature: Built‑in Oil Groove for lubricant supply
Working Principle: Cold plastic deformation, chip‑free forming
Application: CNC machine tapping, through‑hole & blind‑hole
Recommended Materials: Carbon steel, low‑alloy steel, stainless steel and other ductile metals
Key Features
✅ DIN2174 Standard Specification: Strict dimensional compliance for tool holder compatibility
✅ HSSE‑Co5% Cobalt Substrate: Excellent toughness and red‑hardness under continuous heavy‑load tapping
✅ TiCN Hard Coating: High surface hardness, low friction, improved wear‑resistance and tool lifespan
✅ Special Oil Groove Structure: Enhances lubricant penetration to forming area for better cooling
✅ Chip‑Free Roll‑Forming Process: Produces high‑density, higher‑strength threads, no chip disposal trouble
✅ Lead‑point & Transition Taper: Smooth hole entry, stable forming performance for batch CNC machining
Application Scenarios
Widely used in CNC machining workshops, auto‑parts fabrication and general mechanical manufacturing. Ideal for forming internal threads on ductile ferrous materials, works for both through holes and blind holes.
Usage Notice
Forming taps require larger pre‑drill hole diameter compared to cutting taps, please follow recommended tap drill size. Adequate high‑pressure tapping oil is strongly advised to maximize lubrication effect. Adjust spindle speed properly according to workpiece material.
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