M8,M10 Forming Tap
M8 M10 M12 Metric Roll Forming Taps | HSS-E Cobalt Chipless Thread Forming Taps Product Advantages
- Chip-free design, no swarf accumulation, stable tapping for blind holes and deep cavities
- HSS-E cobalt substrate delivers excellent red hardness, not easy to soften under high cutting temperature
- Optimized core diameter enhances tap rigidity, reduces fracture rate during high torque tapping
- Multiple coating selections extend tool service life remarkably vs ordinary cutting taps
- Standard 6H thread tolerance, customizable 5H/6G precision grades available
- Long tool life for chipless tapping,It lasts more than twice as long as cutting taps.
1. Full Dimension Specification Table (M8 / M10 / M12)
Standard: ISO 529 / DIN 371 | Default Tolerance: 6H
| Thread Size | Standard Pitch (mm) | Overall Length (mm) | Shank Diameter (mm) | Thread Working Length (mm) | Square Drive Width (mm) |
|---|---|---|---|---|---|
| M8 | 1.25 | 70 | 8.0 | 17 | 6.2 |
| M10 | 1.50 | 76 | 10.0 | 20 | 8.0 |
| M12 | 1.75 | 82 | 9.0 | 22 | 7.0 |
2. Recommended Pre-Drill Hole Size Table
Optimized for roll forming process, stable thread filling rate and low tapping torque
| Thread Size | Standard Pitch (mm) | Recommended Pre-Drill Diameter (mm) |
|---|---|---|
| M8 | 1.25 | 7.40 |
| M10 | 1.50 | 9.30 |
| M12 | 1.75 | 11.10 |
Machinable Workpiece Materials
Stainless Steel
304, 316, 316L, 430 stainless steel, low hardness duplex stainless steel
Alloy Structural Steel
Alloy Structural Steel
42CrMo, 34CrNiMo6, 40Cr, SCM435 and other quenched & tempered alloy steel (≤35 HRC)
Carbon Steel
Mild steel, medium carbon steel, high carbon steel, annealed cold forging steel
Non-ferrous Ductile Metals
Non-ferrous Ductile Metals
Aluminum alloy, brass, pure copper, zinc alloy