Polski 
- 98% satisfied customers
- 72h delivery
- 30 dni na zwrot
Machine tap M28x1.5 DIN 374 C HSSE
0000007155
Thread size: M28x1,575 sizes of this tap
M3x0,35M3,5x0,35M4x0,5M5x0,5M6x0,75M8x0,75M8x1M10x0,5M10x0,75M10x1M10x1,25M11x1M12x1M12x1,25M12x1,5M14x1M14x1,25M14x1,5M15x1M15x1,5M16x0,75M16x1M16x1,5M16x1,75M17x0,75M17x1M18x1M18x1,25M18x1,5M18x2M19x1M20x1M20x1,25M20x1,5M20x2M22x1M22x1,5M22x2M23x1,25M24x1M24x1,5M24x2M25x1M25x1,5M25x2M27x1M27x1,5M27x2M28x1M28x1,5M28x2M30x1M30x1,5M30x2M32x1,5M32x2M33x1,5M33x2M34x1,5M35x1,5M36x1,5M36x2M36x3M38x1,5M39x1M39x1,5M40x1,5M42x2M48x1,5M48x2M48x3M50x1,5M52x1,5M52x3M56x3
€55.03 tax inc.
Net price: €44.74
Description
Material HSSE
Thread size M28x1.5
ChamferC (2–3) threads
Standard DIN 374
Technical data for the M28x1.5 HSSE INOX general-purpose machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M28x1.5 |
| Thread Pitch P | 1.5 mm |
| Overall Length l1 | 140 mm |
| Flute Length l2 | 27 mm |
| Shank Diameter d2 | 20 mm |
| Square Drive Size a | 16 mm |
| Tap Drill Diameter | 26.5 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. There is 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, next to the cutting edges that produced them. They leave the hole only when the tap is backed out. The M28x1.5 tap has a reduced shank to DIN 374: diameter 20 mm, square size 16 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 1.5 mm/rev, equal to the pitch of the M28x1.5 thread.
M28x1.5 INOX machine tap – general-purpose tool for CNC machining
The M28x1.5 INOX machine tap is designed for precision tapping of holes with a diameter of 28 mm and a fine pitch of 1.5 mm in stainless and structural steels. Made from HSSE high-speed steel with 5% cobalt, it guarantees a hardness of 66 HRC and long cutting edge life even when machining difficult-to-machine materials. Form C with straight flutes provides versatile use in through holes and blind holes. The 6H tolerance in accordance with DIN 374 confirms high manufacturing quality. The M28x1.5 general-purpose machine tap is intended for series production departments.
Key features of the M28x1.5 HSSE tap for through holes and blind holes
- Manufacturing precision to 6H tolerance ensures dimensional repeatability and full thread interchangeability in series production of mechanical and hydraulic components
- Compliance with DIN 374 for fine threads confirms quality and ensures standardized shank dimensions compatible with European holders
- Durability increased by the addition of 5% cobalt allows operation at temperatures up to 650°C without loss of cutting edge performance
- Material versatility covering austenitic stainless steels 304 and 316, structural steels up to 800 MPa, gray and ductile cast iron, and aluminum alloys
- Compatibility with ER32 holders and tapping heads for CNC machining centers with synchronous tapping and automatic tool changing
- M28x1.5 machine tap for through and blind holes with form C allows both hole types to be tapped with a single tool without the risk of jamming
The M28x1.5 HSSE machine tap is used in steel structures and industrial welding applications requiring durable threaded connections. It is well suited to the production of automation components. The tap drill diameter for the M28x1.5 thread is 26.5 mm.
Cutting data for the M28x1.5 HSSE INOX general-purpose machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 57-227 | 86-340 |
| MStainless steel / INOX | 5-10 | 57-114 | 86-171 |
| KCast iron | 5-15 | 57-171 | 86-256 |
| NAluminum | 10-25 | 114-284 | 171-426 |
Thread preparation M28x1.5
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 26.5 mm
3 Tapping
M28x1.5
✓ Done!
Tolerance 6H
Standard: DIN 374 | 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 M28x1.5 HSSE tap with form C and straight flutes is versatile – it is suitable for both through and blind holes. The design ensures proper chip evacuation in both types of holes.
The M28x1.5 HSSE tap cuts internal threads to tolerance class 6H. The 6H designation defines the permissible deviations of the thread pitch and minor diameters – the digit 6 indicates the width of the tolerance zone (medium), while the letter H indicates the position of the zone at the zero line. The 6H tolerance ensures a proper fit with screws of tolerance class 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
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 |
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.