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Description
Material HSSE-PM
Thread size M10
ChamferC (2–3) threads
Standard DIN 376
Technical data for the M10 blind-hole tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M10 |
| Thread Pitch P | 1.5 mm |
| Helix Angle | 40° |
| Overall Length l1 | 100 mm |
| Flute Length l2 | 17 mm |
| Length l3 | 39 mm |
| Shank Diameter d2 | 7 mm |
| Square Drive Size a | 5.5 mm |
| Tap Drill Diameter | 8.5 mm |
| Chamfer | C (2÷3) P |
| Thread tolerance | 6H |
How a spiral flute tap evacuates chips from a blind hole
The 40° flute works like a screw conveyor
The flutes of this tap follow a right-hand helix at an angle of 40° to the axis. The tap rotates clockwise and advances into the hole. Chips cut by the chamfer enter the flute, and the helix carries them upward like the screw in a meat grinder. The bottom of the hole stays clean, and the cutting edges do not encounter packed chips. The M10 x1.5 tap has a reduced shank according to DIN 376: diameter 7 mm, square size 5.5 mm.
1
The 40° spiral flute carries chips upward from the chamfer.
2
The stepped chip exits the hole and breaks into short pieces.
3
The tap rotates clockwise to cut a right-hand thread.
4
Chamfer C: 2–3 incomplete threads on the tapered lead.
5
Clearance below the tap tip – min. 2 thread pitches above the bottom.
6
Feed 1.5 mm/rev, equal to the pitch of the M10 x1.5 thread.
M10 spiral flute machine tap – with long shank, DIN 376
The M10 spiral flute machine tap with long shank is designed for precision tapping of blind holes in toolrooms and prototyping shops. HSSE-PM powder metallurgy steel construction guarantees a uniform microstructure and a hardness of 66-68 HRC with excellent edge grindability. The 40° spiral flute design directs chips backward, which is essential for blind hole tapping. The long shank in accordance with DIN 376 increases clamping rigidity in machine tool holders. Tolerance class 6H guarantees the dimensional repeatability required in precision manufacturing.
Technical data for the M10 spiral flute machine tap
- Material versatility covering structural steels up to 1000 MPa, alloy steels, austenitic and ferritic stainless steels, and difficult-to-machine nickel alloys
- Tool life increased by powder metallurgy technology allows 600-900 threads to be produced in structural steel with proper emulsion cooling
- Compatibility with ER25 and ER32 tool holders and collets for precise clamping on machining centers with axial compensation
- Precision to tolerance class 6H for demanding fit tolerances in series production of mechanical and hydraulic components with stringent requirements
- Conforms to DIN 376 ensures standardized long shank dimensions and full interchangeability with tools from premium European manufacturers
- 40° flute geometry with form C chamfer allows tapping close to the bottom of a blind hole with a minimal incomplete thread length of 2-3 pitches
The M10 spiral flute tap is used in toolrooms and prototyping shops for CNC machining of precision components. Cooling with an oil emulsion at a minimum concentration of 8% or with tapping oil extends tool life by a factor of 2-3. The tap drill diameter for an M10 thread is 8.5 mm.
Cutting data for the M10 blind-hole machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 159-637 | 238-956 |
| MStainless steel | 5-10 | 159-318 | 238-477 |
| KCast iron | 5-15 | 159-477 | 238-716 |
| NAluminum | 10-25 | 318-796 | 477-1194 |
Thread preparation M10 in a blind hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 8.5 mm
3 Tapping
M10
✓ Done!
Tolerance 6H
Standard: DIN 376 | Chamfer: C (spiral flute) | 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)
Frequently asked questions
The M10 HSSE-PM DIN 376 tap is designed for austenitic and ferritic stainless steels, alloy steels, titanium, and difficult-to-machine nickel alloys. The long shank enables tapping in deep pockets and holes with restricted access.
For the M10x1.5 thread in tolerance class 6H, the recommended tap drill diameter is 8.5 mm. The hole tolerance range should be within 8.5 to 8.7 mm. Exceeding the upper limit results in an incomplete thread profile and a lower tolerance class.
Fana HSSE-PM taps manufactured using powder metallurgy achieve a hardness of 66-68 HRC while maintaining high toughness. Compared with HSSE, they provide 30-50% longer tool life in stainless steels and better cutting edge resistance to chipping when machining materials with inclusions.
Product accessories
Hand tap M10 DIN 352/3 6H HSS Bucovice
Reference: 0000006583 In stock > 10 items
€11.84
€14.57 brutto
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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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