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Description
Material HSS
Thread size M12x1.25
ChamferD (3.5÷5) threads
Standard DIN 374
Technical data for the M12x1.25 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M12x1.25 |
| Thread Pitch P | 1.25 mm |
| Overall Length l1 | 100 mm |
| Flute Length l2 | 20 mm |
| Shank Diameter d2 | 9 mm |
| Square Drive Size a | 7 mm |
| Tap Drill Diameter | 10.8 mm |
| Chamfer | D (3.5÷5) P |
| Thread tolerance | 6H |
M12x1.25 machine tap for blind holes – HSS DIN 374
The M12x1.25 machine tap is a professional tool for cutting internal threads in blind holes. Made of HSS high-speed steel with a hardness of 62-64 HRC, it provides optimum cutting edge life and stable operation at temperatures up to 550°C. The 6H tolerance complies with DIN 374.
Key advantages of the M12x1.25 machine tap
- HSS material – hardness of 62-64 HRC and heat resistance up to 550°C
- Form D chamfer (3.5÷5 threads) – optimal for blind holes
- Tolerance 6H – standard accuracy grade for bolted joints
- Compliance with DIN 374 – verified dimensional quality
The M12x1.25 machine tap is used in toolrooms and maintenance departments. The recommended tap drill diameter is 10.8 mm.
Cutting data for the M12x1.25 blind hole machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 132-530 | 165-662 |
| MStainless steel | 5-10 | 132-265 | 165-331 |
| KCast iron | 5-15 | 132-397 | 165-496 |
| NAluminum | 10-25 | 265-663 | 331-828 |
Thread preparation M12x1.25 in a blind hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 10.8 mm
3 Tapping
M12x1.25
✓ Done!
Tolerance 6H
Standard: DIN 374 | Chamfer: D (straight) | Application: blind holes
Tolerance 6H — metric thread tolerance classes
| Class | Accuracy | Application | Status |
|---|---|---|---|
| 4H / 4g | High | Precision connections, hydraulics | — |
| 6H / 6g | Standard | Machine building, general-purpose | SELECTED |
| 7H / 8g | Low | Large clearance, easy assembly | — |
6H = internal thread (nut, hole) | 6g = external thread (screw)
Product accessories
Counterbore 20X10.2 M12 DIN 373 HSS
Reference: 0000003391 In stock > 10 items
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Machine Tap M12x1.25 DIN 374/35 C HSSE
Reference: 0000006957 In stock < 10 items
€20.26
€24.92 brutto
Hand Tap M12X1.25 DIN 2181/2 6H HSS
Reference: 0000007303 In stock > 10 items
€13.16
€16.18 brutto
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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