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Description
Material HSSE-PM
Thread size M4
ChamferB (3.5–5.5) threads
Standard DIN 376
Technical data for the M4 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M4 |
| Thread Pitch P | 0.7 mm |
| Overall Length l1 | 63 mm |
| Flute Length l2 | 12 mm |
| Shank Diameter d2 | 2.8 mm |
| Square Drive Size a | 2.1 mm |
| Tap Drill Diameter | 3.3 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 M4 x0.7 tap has a reduced shank to DIN 376: diameter 2.8 mm, square size 2.1 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 0.7 mm/rev, equal to the pitch of the M4 x0.7 thread.
M4 machine tap for through holes – HSSE-PM FAN with long shank and TiCN coating
The FAN M4 machine tap for through holes, made from HSSE-PM powder metallurgy steel with a TiCN coating and a long shank according to DIN 376, is designed for the most demanding applications in high-volume production. Powder metallurgy technology provides a uniform microstructure and a hardness of 67-69 HRC, while the long shank ensures minimal tool runout. The TiCN coating with a hardness of 3000 HV reduces friction and increases abrasion resistance even under the most demanding operating conditions.
Technical data for the M4 HSSE-PM FAN machine tap with long shank
- HSSE-PM powder metallurgy steel with a uniform microstructure ensures a hardness of 67-69 HRC and 2-3 times the service life of conventional HSSE taps
- TiCN coating with a hardness of 3000 HV reduces friction, prevents built-up edge, and extends tool life by 50-100% in materials prone to adhesion
- Long shank to DIN 376 ensures greater clamping rigidity and minimal runout, which is critical in high-volume production
- As a premium manufacturer, FAN guarantees the highest manufacturing quality and consistent performance in high-volume production
- Optimal geometry for difficult-to-machine materials, austenitic stainless steels, and titanium alloys
- The 6H tolerance in accordance with DIN 376 ensures thread accuracy and full interchangeability with fasteners
The M4 HSSE-PM FAN machine tap with long shank is used on automated tapping lines in high-volume automotive, aerospace, and medical production. The combination of powder metallurgy steel, TiCN coating, and long shank ensures maximum productivity and repeatability. 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 | 398-1592 | 279-1114 |
| MStainless steel | 5-10 | 398-796 | 279-557 |
| KCast iron | 5-15 | 398-1194 | 279-836 |
| NAluminum | 10-25 | 796-1989 | 557-1392 |
Thread preparation M4 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 3.3 mm
3 Tapping
M4
✓ 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
Combining HSSE-PM powder metallurgy steel with a DIN 376 long shank ensures maximum rigidity, minimal runout, and the longest tool life — an ideal solution for automated tapping lines.
The M4 HSSE-PM DIN 376 tap with TiCN coating is ideal for stainless steels, titanium alloys, nickel superalloys, and other difficult-to-machine materials requiring deep tapping.
The M4 HSSE-PM tap with a TiCN coating achieves 2-3 times the tool life of conventional HSSE taps. It cuts 500-800 threads in stainless steel with proper cooling.
Product accessories
M4 HSSE INOX 6g DIN 22 568 Fanar tooling
Reference: 0000007076 In stock < 10 items
€12.89
€15.86 brutto
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| 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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