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Description
Material HSSE
Thread size M22
ChamferC (2–3) threads
Standard DIN 376
Technical data for the M22 HSSE INOX general-purpose machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M22 |
| Thread Pitch P | 2.5 mm |
| Overall Length l1 | 140 mm |
| Flute Length l2 | 32 mm |
| Shank Diameter d2 | 18 mm |
| Square Drive Size a | 14.5 mm |
| Tap Drill Diameter | 19.5 mm |
| Chamfer | C (2÷3) P |
| Thread tolerance | 6H |
Where chips remain in a straight-flute tap
The flute holds the chips until the tap is reversed out
The straight flute runs parallel to the tap axis. There is no helix to carry chips upward. The chamfer cutting edges are not ground at an angle, so they do not push chips downward. Short chips break into fragments and remain in the flute, next to the cutting edges that produced them. They leave the hole only when the tap is backed out. The M22 x2.5 tap has a reduced shank to DIN 376: diameter 18 mm, square size 14.5 mm.
1
Straight flute – chips remain in the flute, next to the cutting edges that produced them.
2
Chamfer C: 2–3 incomplete threads on the tapered lead.
3
The tap rotates clockwise to cut a right-hand thread.
4
Individual fragments exit at the top, onto the workpiece surface.
5
A few fragments fall below the tip and exit through the bottom of the hole.
6
Feed 2.5 mm/rev, equal to the pitch of the M22 x2.5 thread.
M22 INOX machine tap – straight flutes, form C
The HSSE series for manufacturing engineers and CNC operators working with difficult-to-machine materials includes the versatile M22 INOX machine tap. The 6H tolerance according to DIN 376 ensures the dimensional repeatability required in the production of hydraulic and pneumatic components with stringent leak-tightness requirements. The form C design with straight flutes ensures proper chip evacuation in through and blind holes. The M22 HSSE machine tap made from steel with 5% cobalt ensures a hardness of 66 HRC and long cutting edge life in stainless steels.
Key features of the M22 INOX tap
- Compliance with DIN 376 for metric threads ensures standardized long shank dimensions and full interchangeability with tools from European manufacturers
- Designed for hydraulic connections and pneumatic connections requiring excellent sealing and increased resistance to self-loosening under vibration
- Precision of the 6H tolerance required in the production of hydraulic housings, valve blocks, and components for high-pressure industrial valves and fittings
- Durability thanks to HSSE steel with 5% cobalt allows 350-500 threads to be produced in structural steel with proper lubrication using tapping oil
- Compatibility with ER32 holders and tapping heads for CNC machining centers with synchronous tapping and axial compensation
- Universal M22 machine tap with form C directs chips correctly in both through holes and blind holes without the risk of jamming
The M22 HSSE machine tap is designed for machining structural steels up to 800 MPa, austenitic stainless steels 304 and 316, and aluminum alloys. The M22 machine tap for through and blind holes is not recommended for hardened steels above 45 HRC. The tap drill diameter is 19.5 mm.
Cutting data for the universal M22 HSSE INOX machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 72-289 | 180-722 |
| MStainless steel / INOX | 5-10 | 72-145 | 180-362 |
| KCast iron | 5-15 | 72-217 | 180-542 |
| NAluminum | 10-25 | 145-362 | 362-905 |
Thread preparation M22
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 19.5 mm
3 Tapping
M22
✓ Done!
Tolerance 6H
Standard: DIN 376 | Chamfer: C (straight) | Application: general-purpose (through and 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 M22 HSSE tap with form C and straight flutes is universal – suitable for both through holes and blind holes. Its design ensures proper chip evacuation in both hole types.
The M22 HSSE tap produces an internal thread to tolerance class 6H. The designation 6H specifies the permissible deviations of the thread pitch and minor diameters – the digit 6 indicates the tolerance zone width (medium), and the letter H indicates the position of the zone at the zero line. Tolerance 6H ensures proper fit with screws to tolerance 6g.
When tapping stainless steels, an EP emulsion at a minimum concentration of 8% or tapping oil is recommended for cooling. Cooling extends tool life by a factor of 2-3 and improves the thread surface finish.
Product accessories
HSSE 19.5 cobalt metal drill bit DIN 338
Reference: 13301 In stock > 10 items
€19.74
€24.28 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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