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Description
Material HSSE
Thread size M10
ChamferB (3.5–5.5) threads
Standard DIN 376
Technical data for the M10 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M10 |
| Thread Pitch P | 1.5 mm |
| Overall Length l1 | 100 mm |
| Flute Length l2 | 24 mm |
| Shank Diameter d2 | 7 mm |
| Square Drive Size a | 5.5 mm |
| Tap Drill Diameter | 8.5 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 M10 x1.5 tap has a reduced shank to DIN 376: diameter 7 mm, square size 5.5 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 1.5 mm/rev, equal to the pitch of the M10 x1.5 thread.
M10 machine tap for through holes – Narex HSSE with a long shank to DIN 376
The Narex M10 machine tap for through holes is a professional tool for cutting internal M10 threads in holes requiring increased clamping rigidity and improved tool guidance. The long shank to DIN 376 minimizes tool runout and improves thread quality in the popular M10 size used in machine building and the automotive industry. The HSSE high-speed steel construction with 5% cobalt provides a hardness of 65-67 HRC and high heat resistance in the cutting zone up to 650°C. As a reputable manufacturer, Narex guarantees consistent specifications and repeatable tool geometry.
Technical specifications of the Narex M10 machine tap
- The Narex brand as a reputable cutting tool manufacturer with a long tradition, guarantees the highest manufacturing quality, consistent geometric specifications and excellent value for money
- Long shank to DIN 376 provides greater clamping rigidity and improved tool guidance, which is essential when tapping deep holes and operating at high speeds
- Popular M10 size widely used in machine building, the automotive industry and series production of mechanical components requiring internal threads with standard tolerances
- 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
- Compatibility with ER20 and ER25 holders and tapping heads for CNC machining centers with synchronous tapping and automatic axial compensation
- Metric pitch of 1.5 mm to DIN 13 for M10 coarse threads, with a recommended tap drill diameter of 8.5 mm ensuring optimum thread engagement
The Narex M10 machine tap with a long shank is well suited for maintenance departments performing thread restoration and machine repairs, as well as toolrooms manufacturing precision mechanical components. Form B with straight flutes directs chips forward when tapping through holes. Cooling with an emulsion containing EP additives at a concentration of 8-10% is recommended for optimum tool life.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 159-637 | 238-956 |
| MStainless steel | 5-10 | 159-318 | 238-477 |
| KCast iron | 5-15 | 159-477 | 238-716 |
| NAluminum | 10-25 | 318-796 | 477-1194 |
Thread preparation M10 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 8.5 mm
3 Tapping
M10
✓ 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
DIN 371 specifies a short shank, while DIN 376 specifies a long shank. The long shank provides greater clamping rigidity and improved tool guidance, which is recommended for deep tapping on CNC centers.
Narex is a reputable manufacturer with a long tradition, offering tools with consistent quality and repeatable geometric specifications. Narex taps offer good value for money.
The M10 DIN 376 tap with a long shank is recommended for tapping deep holes, high-speed operation on CNC centers and applications requiring minimal tool runout.
Product accessories
Hand tap M10 DIN 352/3 6H HSS Bucovice
Reference: 0000006583 In stock > 10 items
€11.84
€14.57 brutto
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| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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