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Description
Material HSSE
Thread size M2.2
ChamferB (3.5–5.5) threads
Standard DIN 376
Technical data for the M2.2 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M2.2 |
| Thread Pitch P | 0.45 mm |
| Overall Length l1 | 50 mm |
| Flute Length l2 | 13 mm |
| Shank Diameter d2 | 1.6 mm |
| Square Drive Size a | 2.4 mm |
| Tap Drill Diameter | 1.8 mm |
| Chamfer | B (3.5÷5.5) |
| Thread tolerance | 6H |
M2.2 machine tap for through holes – Fra HSSE for special applications
The Fra M2.2 machine tap for through holes is a specialized tool for cutting internal threads with a nonstandard diameter of 2.2 mm in applications requiring unusual dimensions. Made from HSSE high-speed steel with 5% cobalt, it guarantees a hardness of 65-67 HRC and optimum durability when machining difficult-to-machine materials requiring the highest precision. Size M2.2 is a nonstandard thread used in specialized precision applications where standard M2 or M2.5 threads do not meet the dimensional requirements of the design. As a specialist in special taps, Fra guarantees the availability of rare sizes with consistent quality.
Why choose the Fra M2.2 machine tap
- Manufacturer Fra as a specialist in special-purpose taps, guarantees the availability of nonstandard sizes such as M2.2, high manufacturing quality, and accurate geometry
- Nonstandard M2.2 size fills the gap between the common M2 and M2.5 sizes, used in special designs with specific dimensional requirements
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and heat resistance up to 650°C, essential for tapping stainless steels and difficult-to-machine materials
- Tolerance 6H in accordance with DIN 376 ensures thread accuracy and full interchangeability with fasteners used in precision engineering
- Long shank in accordance with DIN 376, compatible with ER11 holders and small collets for precise clamping on CNC machining centers
- Metric pitch of 0.45 mm in accordance with DIN 13 for M2.2 coarse threads, with a recommended tap drill diameter of 1.75 mm requiring precise drilling
The Fra M2.2 machine tap is used in industrial optics, watchmaking, laboratory equipment, and prototype shops handling custom orders that require unusual diameters. Tapping M2.2 requires low cutting speeds of Vc 4-6 m/min and ample coolant. An emulsion with EP additives at a minimum concentration of 10% is recommended.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 723-2894 | 325-1302 |
| MStainless steel | 5-10 | 723-1447 | 325-651 |
| KCast iron | 5-15 | 723-2170 | 325-976 |
| NAluminum | 10-25 | 1447-3617 | 651-1628 |
Thread preparation M2.2 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 8.5 mm
3 Tapping
M2.2
✓ Done!
Tolerance 6H
Standard: DIN 376 | 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 M2.2 thread is used in industrial optics, watchmaking, laboratory equipment, and prototype shops where standard M2 or M2.5 sizes do not meet dimensional requirements.
The recommended tap drill diameter for the M2.2 thread is 1.75 mm. The M2.2 thread is a nonstandard size — verify size availability when ordering drill bits.
M2.2 is a nonstandard size, and fasteners may require a special order. Checking availability with precision component suppliers in advance is recommended.
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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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