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Machine Tap M64x4 DIN 374 B HSSE
12432
Thread size: M64x461 sizes of this tap
M5x0,5M10x1M10x1,25M11x0,75M12x1M12x1,25M12x1,5M14x1M14x1,25M14x1,5M15x1M15x1,25M15x1,5M16x1M16x1,5M17x1M18x1M18x1,5M18x2M20x0,75M20x1M20x1,25M20x1,5M20x2M22x1,5M22x2M24x1M24x1,5M24x2M25x1M25x1,5M25x2M26x1,5M27x1,5M28x1,5M30x1,5M30x2M30x3M32x1M32x1,5M32x2M33x1,5M33x2M35x1,5M36x1,5M36x2M36x3M38x1,5M39x1,5M39x2M40x1,5M42x1,5M42x2M42x3M48x1,5M50x2M52x2M56x3M60x3M64x3M64x4
€640.89 tax inc.
Net price: €521.05
Description
Material HSSE
Thread size M64x4
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M64x4 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M64x4 |
| Thread Pitch P | 4 mm |
| Overall Length l1 | 220 mm |
| Flute Length l2 | 75 mm |
| Shank Diameter d2 | 50 mm |
| Square Drive Size a | 39 mm |
| Tap Drill Diameter | 60 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 M64x4 tap has a reduced shank according to DIN 374: diameter 50 mm, square size 39 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 4 mm/rev, equal to the pitch of the M64x4 thread.
M64x4 metric fine machine tap – HSSE for extreme-duty hydraulics
The manufacturer offers the M64x4 fine-thread machine tap made from HSSE high-speed steel with 5% cobalt for extreme-duty hydraulic applications and heavy industry. The pitch of 4 mm falls between the M64x6 coarse thread and typical metric fine threads, offering a balance between assembly speed and connection strength. The 6H tolerance in accordance with DIN 374 guarantees the dimensional repeatability required in the manufacture of the largest structural components.
Why choose the M64x4 metric fine thread machine tap
- Fine thread with a 4 mm pitch offers a balance between the assembly speed of a coarse thread and the strength of a fine thread
- Extremely large M64 diameter used in heavy industry, the energy sector, and extreme-duty hydraulic applications
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and heat resistance up to 650°C, extending cutting edge life
- The 6H tolerance in accordance with DIN 374 ensures thread accuracy and full interchangeability with fasteners
- Compatibility with ER40 holders and specialized chucks for threads of extremely large diameter
- The recommended hole diameter of 60 mm for the M64x4 metric fine thread ensures an optimal percentage of thread engagement
The M64x4 machine tap is used in extreme-duty hydraulic applications, the highest-power cylinders, the energy sector, and exceptionally large steel structures. The metric fine thread provides better leak-tightness than a coarse thread at high pressures. Cooling with an emulsion containing 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 | 25-99 | 100-396 |
| MStainless steel | 5-10 | 25-50 | 100-200 |
| KCast iron | 5-15 | 25-75 | 100-300 |
| NAluminum | 10-25 | 50-124 | 200-496 |
Thread preparation M64x4 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 60 mm
3 Tapping
M64x4
✓ 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
The M64x4 metric fine thread provides approximately 50% higher tensile strength, better leak-tightness, and greater resistance to self-loosening while maintaining relatively fast assembly.
The recommended tap drill diameter for the M64x4 metric fine thread is 60 mm. Precise hole machining ensures full thread engagement.
The M64x4 thread is used in extreme-duty hydraulic applications, the highest-power cylinders, the energy sector, and exceptionally large steel structures.
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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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