- 98% satisfied customers
- 72h delivery
- 30 dni na zwrot
Description
Material HSSE
Thread size M11
ChamferB (3.5–5.5) threads
Standard DIN 376
Technical data for the M11 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M11 |
| Thread Pitch P | 1.5 mm |
| Overall Length l1 | 100 mm |
| Flute Length l2 | 22 mm |
| Shank Diameter d2 | 8 mm |
| Square Drive Size a | 6.2 mm |
| Tap Drill Diameter | 9.5 mm |
| Chamfer | B (3.5÷5.5) P |
| Thread tolerance | 6H |
How the type B through-hole chamfer pushes chips down the hole
Chips exit at the bottom instead of returning through the thread
The type B through-hole chamfer has a chip breaker at the tip of the tap – an angled notch in the cutting edges. The chip breaker directs chips down the hole, ahead of the tap tip. The chips curl into a spring shape, break into short pieces and exit the hole on the other side of the workpiece. The threads already cut remain clean because the chips do not pass through them on their way up. The M11 x1.5 tap has a reduced shank to DIN 376: diameter 8 mm, square size 6.2 mm.
1
Straight flute – chips do not enter it; the flute carries lubricant to the cutting edges.
2
The chip breaker at the tip of the tap directs chips down the hole.
3
The tap rotates clockwise to cut a right-hand thread.
4
B chamfer: 3.5–5.5 incomplete threads on the entry taper.
5
The chips break into segments: individual pieces at the top of the hole, with progressively more farther down. They fall out below the workpiece.
6
Feed 1.5 mm/rev, equal to the pitch of the M11 x1.5 thread.
M11 machine tap for through holes – Narex HSSE with a long shank to DIN 376
The M11 through-hole machine tap from Narex is a specialized tool for cutting internal threads with a nonstandard diameter of 11 mm in holes requiring increased clamping rigidity. Size M11 is a nonstandard thread used in specialized applications where standard M10 or M12 threads do not meet strength or dimensional design requirements. Made from HSSE high-speed steel with 5% cobalt, it provides a hardness of 65-67 HRC and high thermal resistance up to 650°C. As a reputable manufacturer, Narex guarantees the availability of nonstandard threads with consistent quality.
Key features of the Narex M11 machine tap
- The Narex brand as a reputable cutting tool manufacturer with a long tradition, guarantees the highest manufacturing quality and consistent specifications even for nonstandard sizes
- Nonstandard M11 size fills the gap between the popular M10 and M12 sizes, used in designs with specific strength or dimensional requirements
- Long shank to DIN 376 provides greater clamping rigidity and better tool guidance, which is important when tapping deep holes in difficult-to-machine materials
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and heat resistance up to 650°C, extending cutting edge life under intensive use
- Compatibility with ER20 and ER25 holders and tapping heads for CNC machining centers with synchronous tapping and automatic axial compensation
- Metric pitch of 1.5 mm to DIN 13 for M11 coarse threads, with a recommended tap drill diameter of 9.5 mm ensuring optimum thread engagement
The Narex M11 machine tap is used in toolrooms and prototyping shops to produce components with specific strength requirements, as well as in the aviation and aerospace industries. Form B with straight flutes directs chips forward when tapping through holes. Cooling with an emulsion containing EP additives at a concentration of 8-10% is recommended for optimal tool life.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 145-579 | 218-868 |
| MStainless steel | 5-10 | 145-289 | 218-434 |
| KCast iron | 5-15 | 145-434 | 218-651 |
| NAluminum | 10-25 | 289-723 | 434-1084 |
Thread preparation M11 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 9.5 mm
3 Tapping
M11
✓ 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 M11 thread is used in special designs where standard sizes M10 or M12 do not provide the optimum strength-to-size ratio. It is found in precision engineering and the aerospace industry.
The recommended tap drill diameter for the M11 thread is 9.5 mm. The M11 thread is a nonstandard size — verify size availability when ordering drill bits.
M11 is a nonstandard size, and fasteners may require a special order. Checking availability with industrial suppliers in advance is recommended.
Product accessories
Machine tap M11 DIN 376/35 C HSSE Narex
Reference: 0000007292 In stock < 10 items
€31.58
€38.84 brutto
Reviews
No customer reviews for the moment.
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 |
Recommended for you
This website uses its own and third-party cookies to improve our services and show you advertising related to your preferences by analyzing your browsing habits. To give your consent to its use, press the Accept button.
Cookie preferences
Functional cookiesTechnical
Functional cookies are strictly necessary to provide the services of the shop, as well as for its proper functioning, so it is not possible to refuse their use. They allow the user to browse through our website and use the different options or services that exist on it.
Advertising Cookies
These are cookies that collect information about the advertisements shown to users of the website. They can be anonymous, if they only collect information about the advertising spaces shown without identifying the user, or personalised, if they collect personal information about the user of the shop by a third party, for the personalisation of these advertising spaces.
Analytics cookies
Collect information about the user's browsing experience in the shop, usually anonymously, although sometimes they also allow the user to be uniquely and unequivocally identified in order to obtain reports on the user's interests in the products or services offered by the shop.