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Machine tap M35X1.5 DIN 374/35 C SE
0000006437
€114.91 tax inc.
Net price: €93.42
Description
Material HSSE
Thread size M35x1.5
ChamferC (2–3) threads
Standard DIN 374
Technical data for the M35x1.5 blind hole tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M35x1.5 |
| Thread Pitch P | 1.5 mm |
| Helix Angle | 35° |
| Overall Length l1 | 170 mm |
| Flute Length l2 | 30 mm |
| Length l3 | 62 mm |
| Shank Diameter d2 | 28 mm |
| Square Drive Size a | 22 mm |
| Tap Drill Diameter | 33.5 mm |
| Chamfer | C (2÷3) P |
| Thread tolerance | 6H |
How a spiral flute tap evacuates chips from a blind hole
The 35° flute works like a screw conveyor
The flutes of this tap follow a right-hand helix at an angle of 35° to the axis. The tap rotates clockwise and advances into the hole. Chips cut by the chamfer enter the flute, and the helix carries them upward like the auger in a meat grinder. The bottom of the hole stays clear, and the cutting edges do not encounter packed chips. The M35x1.5 tap has a reduced shank to DIN 374: diameter 28 mm, square drive 22 mm.
1
The 35° spiral flute carries chips upward from the chamfer.
2
The stepped chip exits the hole and breaks into short pieces.
3
The tap rotates clockwise to cut a right-hand thread.
4
Chamfer C: 2–3 incomplete threads on the tapered lead.
5
Clearance below the tap tip – min. 2 thread pitches above the bottom.
6
Feed 1.5 mm/rev, equal to the pitch of the M35x1.5 thread.
M35x1.5 spiral-flute machine tap – metric fine thread for precision joints
In this range, the manufacturer offers an M35x1.5 spiral-flute machine tap with a fine pitch of 1.5 mm, designed for leak-tight joints in industrial valves and fittings. Made of HSSE steel with 5% cobalt, the tool meets DIN 374 requirements for metric fine threads and provides a hardness of 65-67 HRC. The 35° spiral flute guarantees controlled chip evacuation when tapping blind holes. Chamfer form C allows tapping close to the bottom of a blind hole, leaving a minimum of 2-3 incomplete threads.
Advantages and applications of the M35x1.5 spiral-flute machine tap
- Compatibility with ER40 holders and tapping chucks with axial compensation for CNC machining centers and automatic lathes
- Tolerance class 6H precision in accordance with DIN 374 guarantees the dimensional repeatability required in series production of precision components
- Designed for industrial hydraulics includes valve blocks, cylinder bodies, directional control valves, and pressure system components rated up to 400 bar
- Conforms to DIN 374 for metric fine threads ensures standardized dimensions and full interchangeability with tools from European manufacturers
- Durability of HSSE steel allows machining of structural steels up to 900 MPa, stainless steels, and aluminum and copper alloys
- 35° geometry with form C ensures consistent chip evacuation when tapping blind holes to a depth of 2D
The M35x1.5 machine tap is used in the production of valve blocks and industrial valves and fittings requiring leak-tight threaded joints. The fine pitch of 1.5 mm provides a larger contact area than the standard M35x4 thread. The tap drill diameter for the M35x1.5 thread is 33.5 mm in accordance with metric fine thread tables.
Cutting data for the M35x1.5 blind hole machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 45-182 | 68-273 |
| MStainless steel | 5-10 | 45-91 | 68-136 |
| KCast iron | 5-15 | 45-136 | 68-204 |
| NAluminum | 10-25 | 91-227 | 136-340 |
Thread preparation M35x1.5 in a blind hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 33.5 mm
3 Tapping
M35x1.5
✓ Done!
Tolerance 6H
Standard: DIN 374 | Chamfer: C (spiral flute) | Application: 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 M35x1.5 HSSE metric fine thread machine tap is suitable for structural steels up to 900 MPa, stainless steels, aluminum, and brass. The M35 size is used in industrial pneumatics and special valves and fittings.
For the M35x1.5 metric fine thread in tolerance class 6H, the tap drill diameter should be 33.5 mm. The permissible hole tolerance range is 33.5-33.7 mm. A smaller hole increases cutting torque.
Yes, cooling with an oil emulsion at a minimum concentration of 8% or with tapping oil is recommended and extends tool life by a factor of 2-3. Intensive cooling is required when machining stainless steels.
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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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