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Description
Material HSSE
Thread size M11
ChamferC (2–3) threads
Standard ISO 529
Technical data for the M11 HSSE INOX general-purpose machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M11 |
| Thread Pitch P | 1.5 mm |
| Overall Length l1 | 85 mm |
| Flute Length l2 | 25 mm |
| Shank Diameter d2 | 8 mm |
| Square Drive Size a | 6.3 mm |
| Tap Drill Diameter | 9.5 mm |
| Chamfer | C (2÷3) P |
| Thread tolerance | 6H |
M11 INOX machine tap – straight flutes, form C
The Fra HSSE series, designed for manufacturing engineers and CNC operators working with difficult-to-machine materials, includes the general-purpose M11 INOX machine tap. The 6H tolerance in accordance with ISO 529 guarantees the dimensional repeatability required when manufacturing mechanical components with stringent accuracy requirements. The straight flute design with chamfer form C ensures proper chip evacuation in through holes and blind holes. The M11 HSSE machine tap made of steel with 5% cobalt ensures a hardness of 66 HRC and long cutting edge life.
Key features of the M11 INOX Fra tap
- Compliance with ISO 529 ensures internationally standardized dimensions and full interchangeability with tools from global manufacturers
- 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
- Designed for stainless steels of austenitic grades 304 and 316, structural steels up to 800 MPa, and aluminum alloys and engineering brass
- Compatibility with ER20 holders and tapping heads for CNC machining centers with synchronous tapping and axial compensation
- Universal M11 machine tap with form C directs chips correctly in both through holes and blind holes without the risk of jamming
The Fra M11 machine tap for through holes and blind holes is used in maintenance departments to restore threads and repair production machinery. Compatible with automatic tool changers and tool magazines. The tap drill diameter for the M11 thread is 9.5 mm.
Cutting data for the universal M11 HSSE INOX machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 145-579 | 218-868 |
| MStainless steel / INOX | 5-10 | 145-289 | 218-434 |
| KCast iron | 5-15 | 145-434 | 218-651 |
| NAluminum | 10-25 | 289-723 | 434-1084 |
Thread preparation M11
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 9.5 mm
3 Tapping
M11
✓ Done!
Tolerance 6H
Standard: ISO 529 | 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
With proper cooling and lubrication, the M11 HSSE tap produces 400-600 threads in structural steel or 250-350 threads in stainless steel. Dry machining reduces tool life by 40-50%.
Yes, the M11 HSSE tap with 5% cobalt is designed for austenitic stainless steels 304 and 316. The cobalt addition increases heat resistance up to 650°C in the cutting zone.
An HSSE tap contains 5% cobalt, which increases hardness from 64 to 66 HRC and heat resistance to 650°C. HSSE is suitable for stainless steels, while HSS is suitable only for structural steels up to 800 MPa.
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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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