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Description
Material HSS
Thread size M22
ChamferC (2–3) threads
Standard DIN 376
Technical data for the universal M22 HSS INOX machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M22 |
| Thread Pitch P | 2.5 mm |
| Overall Length l1 | 140 mm |
| Flute Length l2 | 34 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 HSS machine tap – compliant with DIN 376
This HSS series model, designed to produce M22 metric threads in structural steels and nonferrous materials, features a long shank according to DIN 376. The M22 HSS machine tap has a reinforced straight shank that increases rigidity during operation on machining centers and conventional machines. HSS high-speed steel with a hardness of 64 HRC ensures stable operation at standard machining parameters in materials with a tensile strength up to 800 MPa. Form C with straight flutes provides universal application. The universal M22 machine tap is intended for toolrooms and series production departments.
Key advantages of the M22 HSS tap
- Material versatility covering structural steels up to 800 MPa, carbon steels, aluminum, brass and gray cast iron without the need to change machining parameters
- Durability and reliability thanks to HSS high-speed steel with a hardness of 64 HRC, which retains its cutting properties for hundreds of tapping cycles
- Compatibility with ER32 holders and collets for precise clamping on machining centers with axial compensation and automatic tool changing
- Precision to tolerance class 6H for demanding fit tolerances in series production of mechanical components and steel structures
- Long shank to DIN 376 provides increased clamping rigidity and eliminates vibration at high spindle speeds on CNC machines
- M22 machine tap for through holes and blind holes with form C allows tapping of both hole types without changing the tool or parameters
The M22 HSS machine tap is used in toolrooms and prototype shops for one-off and small-batch production of precision components. Cooling with an oil emulsion at a minimum concentration of 6% or tapping oil extends tool life by a factor of 2-3. The tap drill diameter for the M22 thread is 19.5 mm for a coarse thread with a pitch of 2.5 mm.
Cutting data for the universal M22 HSS 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 HSS tap is suitable for structural steels up to 800 MPa, gray and ductile cast iron, and aluminum alloys and brass. It is not recommended for stainless steels or steels hardened above 45 HRC.
The nominal tap drill diameter for the M22 thread is 19.5 mm. The hole tolerance zone should be within the range of 19.4–19.6 mm. A hole at the lower tolerance limit produces a fuller thread profile, while a hole at the upper limit reduces tapping torque.
The M22 tap works with ER32 holders and tapping chucks with axial compensation. Synchronized heads with automatic tool change capability are recommended for CNC machines.
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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| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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