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Description
Material HSSE
Thread size M5
ChamferC (2–3) threads
Standard DIN 371
Technical data for the M5 HSSE INOX general-purpose machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M5 |
| Thread Pitch P | 0.8 mm |
| Overall Length l1 | 70 mm |
| Flute Length l2 | 15 mm |
| Length l3 | 25 mm |
| Shank Diameter d2 | 6 mm |
| Square Drive Size a | 4.9 mm |
| Tap Drill Diameter | 4.2 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. It has 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, beside the cutting edges that produced them. They leave the hole only when the tap is backed out. The M5 x0.8 tap has a reinforced shank according to DIN 371: diameter 6 mm, square drive 4.9 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 0.8 mm/rev, equal to the pitch of the M5 x0.8 thread.
M5 INOX machine tap – for through and blind holes
The HSSE series with a short shank according to DIN 371, designed for manufacturing engineers and CNC operators working with small diameters, includes the compact M5 INOX machine tap. The 6H tolerance according to DIN 371 ensures the dimensional repeatability required in series production of mechanical components with demanding specifications. The short shank allows operation in confined spaces at shallow tapping depths. Its HSSE steel construction with 5% cobalt ensures a hardness of 66 HRC and long cutting edge life in stainless and difficult-to-machine steels.
Key features of the M5 HSSE general-purpose tap
- Short shank in accordance with DIN 371 provides compact dimensions ideal for working in confined spaces and at shallow tapping depths
- Designed for stainless steels of austenitic grades 304 and 316, structural steels up to 800 MPa, and aluminum alloys and engineering brass
- Precision of the 6H tolerance required in the manufacture of mechanical, electronic, and industrial automation components with stringent accuracy requirements
- Durability thanks to HSSE steel with 5% cobalt allows 400-600 threads to be produced in structural steel with proper lubrication using tapping oil
- Compatibility with ER16 holders and tapping heads for CNC machining centers with synchronous tapping and axial compensation
- M5 machine tap for through holes and blind holes with form C directs chips correctly in both through holes and blind holes without the risk of jamming
The M5 HSSE machine tap is designed for series machining of electronic and mechanical components. The M5 general-purpose machine tap is not recommended for steels hardened above 45 HRC. The tap drill diameter is 4.2 mm for a coarse thread with a pitch of 0.8 mm.
Cutting data for the universal M5 HSSE INOX machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 318-1273 | 254-1018 |
| MStainless steel / INOX | 5-10 | 318-637 | 254-510 |
| KCast iron | 5-15 | 318-955 | 254-764 |
| NAluminum | 10-25 | 637-1592 | 510-1274 |
Thread preparation M5
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 4.2 mm
3 Tapping
M5
✓ Done!
Tolerance 6H
Standard: DIN 371 | 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 M5 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 M5 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
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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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