- 98% satisfied customers
- 72h delivery
- 30 dni na zwrot
Machine Tap M30x1.5 LH DIN 374 B HSSE
€116.53 tax inc.
Net price: €94.74
Description
Material HSSE
Thread size M30x1.5
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M30x1.5 left-hand machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M30x1.5 |
| Thread Pitch P | 1.5 mm |
| Overall Length l1 | 150 mm |
| Flute Length l2 | 27 mm |
| Shank Diameter d2 | 22 mm |
| Square Drive Size a | 18 mm |
| Tap Drill Diameter | 28.5 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 form B chamfer for through holes has a chip breaker at the tip of the tap – an angled cut in the cutting edges. The chip breaker directs the chip down the hole, ahead of the tap tip. The chip curls into a coil, breaks into short pieces and exits the hole on the other side of the workpiece. The threads already cut remain clean because the chip does not pass through them on its way up. The M30x1.5 tap has a reduced shank according to DIN 374: diameter 22 mm, square size 18 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 counterclockwise – this is how it cuts a left-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 M30x1.5 thread.
M30x1.5 left-hand machine tap for metric fine threads – HSSE for special applications
The M30x1.5 left-hand machine tap for metric fine threads is a specialized tool for producing left-hand internal threads with a reduced pitch of 1.5 mm at a large diameter of 30 mm. HSSE high-speed steel with 5% cobalt ensures a hardness of 65-67 HRC and optimal durability when machining difficult-to-machine materials. The M30x1.5 left-hand metric fine thread combines the advantages of both designs — protection against self-loosening and excellent leak tightness for specialized hydraulic applications.
Why choose the M30x1.5 left-hand machine tap for metric fine threads
- Left-hand thread direction (LH) used in components rotating clockwise, where a right-hand thread could loosen on its own
- Fine thread with a 1.5 mm pitch ensures excellent leak tightness of hydraulic connections and higher tensile strength
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and heat resistance up to 650°C, essential for machining alloy steels
- Tolerance 6H according to DIN 374 ensures precise thread production and full interchangeability with fasteners
- Dual protection against loosening — the left-hand thread direction and fine pitch together eliminate the risk of self-loosening
- Recommended tap drill diameter 28.5 mm for the M30x1.5 left-hand metric fine thread ensures an optimal thread profile
The M30x1.5 left-hand machine tap for metric fine threads is used in specialized hydraulic and machinery applications requiring dual protection against self-loosening and high leak tightness. It is used in rotating machinery, industrial fans, and hydraulic power units. A coolant emulsion with EP additives at a concentration of 8-10% is recommended.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 53-212 | 80-318 |
| MStainless steel | 5-10 | 53-106 | 80-159 |
| KCast iron | 5-15 | 53-159 | 80-238 |
| NAluminum | 10-25 | 106-265 | 159-398 |
Thread preparation M30x1.5 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 28.5 mm
3 Tapping
M30x1.5
✓ Done!
Tolerance 6H
Standard: DIN 374 | 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
Combining a left-hand thread direction with a fine pitch provides dual protection against self-loosening, higher joint strength, and excellent leak tightness. Ideal for hydraulic applications with rotating components.
The recommended tap drill diameter for the M30x1.5 left-hand metric fine thread is 28.5 mm — the same as for a right-hand thread with the same pitch.
The M30x1.5 left-hand thread is used in rotating machinery, industrial fans, hydraulic power units, and wherever dual protection against loosening is required.
Product accessories
Hand Tap M30X1.5 LH DIN 2181/2 6H HSS Varel
Reference: 0000008139
€57.89
€71.21 brutto
Out of stock
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 |
Viewed products
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.