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Wiseman Threading Tools Spiral Point - +0.015 Tolerance - M20x2.5
| Thread Form | Metric Oversize |
| Size | M20 |
| Pitch | 2.5 |
| Tolerance | +0.015 |
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Description
Meet the Wiseman Threading Tools Spiral Point Tap in M20x2.5 with a +0.015 tolerance—the precision threading solution built for dependable, repeatable results in metalworking projects. This isn’t a generic tap; it’s a purpose‑built tool designed to deliver clean, accurate right‑hand threads with every cut.

Why this spiral point tap stands out
- Spiral point (gun nose) design: engineered to push chips ahead of the cutting edge, minimizing resistance and reducing the chance of binding. The result is smoother entry, faster cycles, and steadier threading—even in deeper holes.
- +0.015 tolerance: tight dimensional control means reliable thread engagement with mating components and consistent performance across production runs.
- M20x2.5 thread form: a robust size for medium‑to‑heavy bolt connections where strength and precision are non‑negotiable.
- Right-hand threading: standard configuration for the majority of hardware and machinery, ensuring straightforward installation and maintenance.
- Precision you can trust: designed for machinists, fabricators, and workshop pros who need repeatable results, minimal rework, and longer tool life in busy shop environments.
Ideal applications range from automotive maintenance and equipment repair to industrial prototyping and component manufacture. If your project calls for a dependable, accurate thread form in a large-diameter hole, this Wiseman spiral point tap helps you achieve professional results with fewer interruptions.
Practical usage notes
- Pair with appropriate lubrication to reduce friction and extend tool life. Select a cutting fluid suitable for the material you’re threading.
- Ensure the tap is aligned square to the workpiece. A tap guide or a rigid tapping setup helps maintain accuracy and prevents cross‑threading.
- For through-holes, allow the spiral point to carry chips forward naturally; for blind holes, monitor chip clearance and avoid over‑driving the tap.
- Use a tap wrench or machine tapping setup to apply controlled, steady pressure—let the tool do the work rather than forcing it.
With Wiseman, you’re choosing a threading tool built for reliability under demanding conditions. This spiral point tap is designed to deliver consistent thread quality, reduce downtime, and support precise assemblies in a wide range of metalworking projects.
Key specs at a glance
- Thread type: right-hand
- Size: M20x2.5
- Tolerance: +0.015
- Design: spiral point (gun nose) for efficient chip evacuation
- Application: general-purpose threading in metalworking, ideal for through-holes
Part Numbers
- Protool Part Number
- T07656SP15
- Brand
- Wiseman
- Category
- Metric Oversize Tap
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Full Range: Wiseman Threading Tools Spiral Point - +0.015 Tolerance
View full collection →You are viewing T07656SP15. Click any other SKU to view its full details.
| Product SKU | Thread Form | Size | Pitch | Tolerance | Lead | Thread Direction | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| T07306SP15 | Metric Oversize | M6 | 1 | +0.015 | Spiral Point | Right Hand | £31.25 | 1-2 days | |
| T07356SP15 | Metric Oversize | M8 | 1.25 | +0.015 | Spiral Point | Right Hand | £36.46 | 1-2 days | |
| T07406SP15 | Metric Oversize | M10 | 1.5 | +0.015 | Spiral Point | Right Hand | £41.14 | 1-2 days | |
| T07456SP15 | Metric Oversize | M12 | 1.75 | +0.015 | Spiral Point | Right Hand | £44.29 | 1-2 days | |
| T07606SP15 | Metric Oversize | M16 | 2 | +0.015 | Spiral Point | Right Hand | £60.63 | 1-2 days | |
| T07656SP15 Viewing | Metric Oversize | M20 | 2.5 | +0.015 | Spiral Point | Right Hand | £92.24 | 1-2 days |
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