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Machine Tap M10X1.25 DIN 374 B HSSE
0000005925
Thread size: M10x1,2561 sizes of this tap
M5x0,5M10x1M10x1,25M11x0,75M12x1M12x1,25M12x1,5M14x1M14x1,25M14x1,5M15x1M15x1,25M15x1,5M16x1M16x1,5M17x1M18x1M18x1,5M18x2M20x0,75M20x1M20x1,25M20x1,5M20x2M22x1,5M22x2M24x1M24x1,5M24x2M25x1M25x1,5M25x2M26x1,5M27x1,5M28x1,5M30x1,5M30x2M30x3M32x1M32x1,5M32x2M33x1,5M33x2M35x1,5M36x1,5M36x2M36x3M38x1,5M39x1,5M39x2M40x1,5M42x1,5M42x2M42x3M48x1,5M50x2M52x2M56x3M60x3M64x3M64x4
€17.80 tax inc.
Net price: €14.47
Description
Material HSSE
Thread size M10x1.25
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M10x1.25 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M10x1.25 |
| Thread Pitch P | 1.25 mm |
| Overall Length l1 | 100 mm |
| Flute Length l2 | 15 mm |
| Shank Diameter d2 | 7 mm |
| Square Drive Size a | 5.5 mm |
| Tap Drill Diameter | 8.8 mm |
| Chamfer | B (3.5÷5.5) P |
| Thread tolerance | 6H |
How the type B through-hole chamfer pushes chips down the hole
Chips exit at the bottom instead of returning through the thread
The form B chamfer for through holes has a chip breaker at the tip of the tap – an angled cut in the cutting edges. The chip breaker directs the chip down the hole, ahead of the tap tip. The chip curls into a coil, breaks into short pieces and exits the hole on the other side of the workpiece. The threads already cut remain clean because the chip does not pass through them on its way up. The M10x1.25 tap has a reduced shank according to DIN 374: diameter 7 mm, square size 5.5 mm.
1
Straight flute – chips do not enter it; the flute carries lubricant to the cutting edges.
2
The chip breaker at the tip of the tap directs chips down the hole.
3
The tap rotates clockwise to cut a right-hand thread.
4
B chamfer: 3.5–5.5 incomplete threads on the entry taper.
5
The chips break into segments: individual pieces at the top of the hole, with progressively more farther down. They fall out below the workpiece.
6
Feed 1.25 mm/rev, equal to the pitch of the M10x1.25 thread.
M10x1.25 fine thread machine tap – HSSE for special applications
The M10x1.25 metric fine thread machine tap from the HSSE series is designed to cut internal threads with an intermediate pitch of 1.25 mm in the common M10 diameter used in special applications. The 1.25 mm pitch is intermediate between the M10x1.5 coarse thread and the M10x1 metric fine thread, offering a balance between assembly speed and threaded joint strength. High-speed steel construction with 5% cobalt provides a hardness of 65-67 HRC and high thermal resistance in the cutting zone up to 650°C. The tool is intended for professional toolrooms handling custom orders and prototype shops.
Key advantages of the M10x1.25 metric fine thread machine tap
- Fine thread with a 1.25 mm pitch offers a balance between the assembly speed of the M10x1.5 coarse thread and the strength of the M10x1 metric fine thread while maintaining good sealing performance
- Increased load-bearing area of the thread of the metric fine thread translates into approximately 25% higher tensile strength than the M10x1.5 coarse thread, with better resistance to self-loosening
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and thermal resistance up to 650°C, extending cutting edge life under intensive tool use
- The 6H tolerance in accordance with DIN 374 ensures thread accuracy and full interchangeability with fasteners used in special applications and prototypes
- Compatibility with ER16 and ER20 tool holders and tapping chucks for CNC machining centers with synchronous tapping and axial compensation
- The recommended tap drill diameter of 8.8 mm for the M10x1.25 metric fine thread ensures optimal thread engagement with minimal tool load
The M10x1.25 machine tap is used in special applications where the standard M10x1.5 or M10x1 pitches do not meet the design requirements. Form B with straight flutes directs chips forward when tapping through holes. Cooling with an oil emulsion at a concentration of 6-8% is recommended to maintain optimum tool life in series production.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 159-637 | 199-796 |
| MStainless steel | 5-10 | 159-318 | 199-398 |
| KCast iron | 5-15 | 159-477 | 199-596 |
| NAluminum | 10-25 | 318-796 | 398-995 |
Thread preparation M10x1.25 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 8.8 mm
3 Tapping
M10x1.25
✓ Done!
Tolerance 6H
Standard: DIN 374 | Chamfer: B (straight) | Application: through 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)
Frequently asked questions
The M10x1.25 thread offers a compromise — approximately 25% higher strength than the M10x1.5 coarse thread, but faster assembly than the M10x1 metric fine thread. Used in special applications.
The recommended tap drill diameter for the M10x1.25 metric fine thread is 8.8 mm — intermediate between 8.5 mm for M10x1.5 and 9 mm for M10x1.
M10x1.25 has an intermediate pitch, and fasteners are less common than those with standard pitches. Available from specialist suppliers and in the automotive industry.
Product accessories
Machine tap M10x1.25 DIN 374/35 C SE
Reference: 0000006958 In stock < 10 items
€18.16
€22.33 brutto
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Shipping
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| 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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