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Updated product information. We are reviewing every description in the catalogue. The application area and the materials listed may be incorrect while we set the correct materials on all articles. If in doubt, ask your contact at A4.
Application area
Materials
- Steel
Through hole for steel
Description
Blue ring, HSS-Co, type B Prime quality for application in series production. Ultra-modern manufacturing technology for maximum productivity.
Advantages
- GeometrySpecial groove geometry for low-friction chip removalDesigned for long-chipping materials
- Coating/surfaceTiN (titanium nitride) coating to prevent the formation of built-up edges, inhibits the adhesion of materialCoating ensures a smoother surface in the groove and in the thread profileSurface smoothing ensures reduced torque
- Recommended applicationsCutting speed vc = 10-20 m/minUse of cooling emulsion 6-8 %, or alternatively oil cooling
- Area of applicationSteels up to 1000 N/mm²; structural and case-hardening steels, spheroidal graphite iron, black malleable iron
Advice
- Up to M 10 DIN 371 (reinforced shaft)/from M 12 DIN 376 (with thin shaft)
Technical specifications
| Drill hole diameter | 6.8 mm |
| Cutting direction | Right-hand cutting |
| Cutting material | HSS Co |
| DIN | 371 |
| Hole type | Clearance hole |
| Lead angle shape | B |
| Length | 90.0 mm |
| Material to be processed | Steel |
| Pitch | 1.25 mm |
| Shank diameter | 8.0 mm |
| Size | M8 |
| Size of square | 6.2 mm |
| Surface | TiN |
| Thread type | Metric thread |
| Tolerance of screw taps | 6H |
In stock
ultra machine tap, DIN 371 B, HSS-Co, blue ring, through-hole for M8
Blue ring, HSS-Co, type B Prime quality for application in series production. Ultra-modern manufacturing technology for maximum productivity.
| Article number | 0644100080 |
| EAN | 4029484458400 |
| Pack unit | 1 pc |
| Core hole diameter | 6.8 mm |
| Cutting direction | Right-hand cutting |
| Cutting material | HSS Co |
| DIN | 371 |
| Hole type | Clearance hole |
| Supplier | RECA NORM |