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Machine Tap M15x1 DIN 374 B HSSE
957232
Thread size: M15x161 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
€25.57 tax inc.
Net price: €20.79
Description
Material HSSE
Thread size M15x1
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M15x1 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M15x1 |
| Thread Pitch P | 1 mm |
| Overall Length l1 | 100 mm |
| Flute Length l2 | 20 mm |
| Shank Diameter d2 | 12 mm |
| Square Drive Size a | 9 mm |
| Tap Drill Diameter | 14 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 M15x1 tap has a reduced shank according to DIN 374: diameter 12 mm, square size 9 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 1 mm/rev, equal to the pitch of the M15x1 thread.
M15x1 fine thread machine tap – HSSE for special applications
The M15x1 fine thread machine tap is a specialized tool for producing internal threads with a nonstandard diameter of 15 mm and an extremely reduced pitch of 1 mm for precision applications. Its HSSE high-speed steel construction with 5% cobalt guarantees a hardness of 65-67 HRC and optimum durability when machining difficult-to-machine materials requiring the highest precision. Size M15 is a nonstandard thread used in specialized precision applications where standard M14 or M16 threads do not meet dimensional requirements. The tool is intended for professional toolrooms handling custom orders in optics and precision mechanics.
Advantages and applications of the M15x1 fine thread machine tap
- Nonstandard M15 size fills the gap between the common M14 and M16 sizes, used in structures with specific dimensional or strength requirements dictated by the design
- Fine thread with a 1 mm pitch provides extremely precise position adjustment and very high tensile strength with excellent resistance to self-loosening
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and heat resistance up to 650°C, extending cutting edge life under intensive use
- Tolerance class 6H according to DIN 374 ensures precise thread production and full interchangeability with fasteners used in precision mechanics and optics
- Compatibility with ER20 and ER25 holders and tapping chucks with axial compensation for CNC machining centers with synchronous tapping capability
- The recommended tap drill diameter of 14 mm for the M15x1 metric fine thread ensures optimal thread engagement with minimal tool load
The M15x1 machine tap is used in industrial optics, precision mechanics, measuring instruments, and prototype shops handling custom orders. The combination of a nonstandard diameter and an extremely fine pitch provides exceptional adjustment precision. Cooling with an oil emulsion at a concentration of 6-8% is recommended to maintain optimum tool life.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 106-424 | 106-424 |
| MStainless steel | 5-10 | 106-212 | 106-212 |
| KCast iron | 5-15 | 106-318 | 106-318 |
| NAluminum | 10-25 | 212-531 | 212-531 |
Thread preparation M15x1 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 14 mm
3 Tapping
M15x1
✓ 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 M15x1 thread is used in industrial optics, precision mechanics, measuring instruments, and prototype shops where a combination of a nonstandard diameter and extreme precision is required.
The recommended tap drill diameter for the M15x1 fine thread is 14 mm. The M15 thread is a nonstandard size — check size availability when ordering drill bits.
M15x1 is a special thread, and fasteners must be specially ordered from precision component suppliers. Checking availability in advance is recommended.
Product accessories
Machine tap M15x1 DIN 374/35 C HSSE Fra
Reference: 0000007140 In stock < 10 items
€27.63
€33.99 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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