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Machine tap M18x2 DIN 374 C HSSE Fra
0000007144
Thread size: M18x275 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
€30.75 tax inc.
Net price: €25.00
Description
Material HSSE
Thread size M18x2
ChamferC (2–3) threads
Standard DIN 374
Technical data for the M18x2 HSSE INOX general-purpose machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M18x2 |
| Thread Pitch P | 2 mm |
| Overall Length l1 | 125 mm |
| Flute Length l2 | 27 mm |
| Shank Diameter d2 | 14 mm |
| Square Drive Size a | 11 mm |
| Tap Drill Diameter | 16 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 M18x2 tap has a reduced shank to DIN 374: diameter 14 mm, square size 11 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 2 mm/rev, equal to the pitch of the M18x2 thread.
M18x2 INOX machine tap – for stainless steel
The M18x2 INOX machine tap is a professional tool for cutting M18 internal threads with a fine pitch of 2 mm in stainless and structural steels. HSSE high-speed steel construction with 5% cobalt provides a hardness of 66 HRC and high resistance to cutting zone temperatures up to 650°C. Form C with straight flutes allows both through and blind holes to be tapped without changing tools. The 6H tolerance in accordance with DIN 374 guarantees dimensional repeatability. The M18x2 HSSE machine tap from Fra is intended for toolrooms and CNC machining center operators.
Key benefits of the M18x2 INOX Fra tap
- Durability and heat resistance thanks to HSSE steel with 5% cobalt, which retains its cutting properties at temperatures up to 650°C in the contact zone with the workpiece material
- Compliance with DIN 374 for metric fine threads confirms standardized dimensions and full compatibility with European toolholding systems
- Precision to tolerance class 6H guarantees the dimensional accuracy required in the production of pneumatic components and high-quality industrial valves and fittings
- Compatibility with ER32 holders and tapping chucks with axial compensation for synchronous tapping on CNC and conventional machines
- Pitch 2 mm provides an intermediate option between coarse and fine threads, combining high load capacity with fast component assembly
- M18x2 general-purpose machine tap with form C evacuates chips properly in through holes and blind holes without the risk of thread damage
The M18x2 machine tap for through and blind holes is used in the production of industrial valves and fittings and pneumatic components requiring leak-tight threaded connections. The Fra brand guarantees European manufacturing quality and long tool life. The tap drill diameter for the M18x2 thread is 16 mm.
Cutting data for the M18x2 HSSE INOX general-purpose machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 88-354 | 176-708 |
| MStainless steel / INOX | 5-10 | 88-177 | 176-354 |
| KCast iron | 5-15 | 88-265 | 176-530 |
| NAluminum | 10-25 | 177-442 | 354-884 |
Thread preparation M18x2
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 16 mm
3 Tapping
M18x2
✓ 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
With proper cooling and lubrication, the M18x2 HSSE tap cuts 400-600 threads in structural steel or 250-350 threads in stainless steel. Dry operation reduces tool life by 40-50%.
Yes, the M18x2 HSSE tap with 5% cobalt is designed for austenitic stainless steels 304 and 316. The addition of cobalt increases heat resistance in the cutting zone to 650°C.
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.
Product accessories
Machine tap M18x2 DIN 374 B HSSE Fra
Reference: 0000004221 In stock < 10 items
€26.58
€32.69 brutto
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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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