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Wiseman Threading Tools Taper Lead Metric HSS Tap Right Hand - M20x1
| Thread Form | Metric |
| Size | M20 |
| Pitch | 1 |
| Tap Type | Taper Lead Tap |
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Description

The Wiseman Threading Tools Taper Lead Metric HSS Tap Right Hand - M20x1 is a precision ground, uncoated thread tap designed for reliable, high-quality internal threading in a wide range of metals. Built to ISO 529 dimensions, this right-hand, taper-lead tap delivers smooth start-up and consistent thread formation, making it a dependable choice for professional workshops and serious hobbyists alike.
Key features that set this tap apart:
- Taper lead design for easier entry and reduced threading stress, especially helpful when starting threads in through-holes or near material boundaries.
- High-speed steel (HSS) with a ground flute geometry that provides solid rigidity, efficient chip evacuation, and durability under typical tapping speeds and feeds.
- Uncoated finish offers straightforward cutting action and broad compatibility with a variety of workpiece materials, reducing the risk of coating-induced friction in general-purpose threading tasks.
- ISO 529 compliant dimensions ensure compatibility with standard drilling and tapping setups, providing predictable performance across machines and manual operations.
- Metric M20x1, right-hand thread—the common configuration for metric fasteners, enabling straightforward integration into fabrication, maintenance, and repair projects.
- Ground threads deliver clean, precise profiles that promote reliable thread engagement, better tolerance control, and longer tool life in repetitive use.
Ideal use scenarios include repairing or installing internal threads in steel, cast iron, aluminum, and other common metals. Whether you’re retrofitting a machine component, assembling structural elements, or performing maintenance on equipment, this M20x1 HSS tap helps you achieve strong, accurate threads with less guesswork and fewer runouts.
Practical tips for best results:
- Use an appropriate cutting fluid to manage heat and extend tap life; start with a light, steady feed and reduce pressure as the tap begins to cut.
- Align the tap perfectly with the hole axis to prevent thread misalignment and ensure uniform engagement along the full thread length.
- Work gradually—rotate forward to cut, then back off slightly to break chips and prevent binding, repeating until the full depth is reached.
- Verify thread depth with a go/no-go gauge after tapping to confirm the dimension meets your spec before assembly.
With the Wiseman name behind it, this taper lead HSS tap delivers dependable performance, predictable results, and a practical solution for metric thread work. It’s a focused tool for professionals who demand precision threading without unnecessary complexity.
Part Numbers
- Protool Part Number
- T14654T
- Brand
- Wiseman
- Category
- Hand 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 Taper Lead Metric HSS Taps
View full collection →You are viewing T14654T. Click any other SKU to view its full details.
| Product SKU | Thread Form | Size | Pitch | Tap Type | Thread Direction | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| T10034T | Metric | M1.4 | 0.3 | Taper Lead Tap | Right Hand | £14.62 | 1-2 days | |
| T10054T | Metric | M1.6 | 0.35 | Taper Lead Tap | Right Hand | £14.62 | 1-2 days | |
| T10154T | Metric | M2 | 0.4 | Taper Lead Tap | Right Hand | £6.49 | 1-2 days | |
| T10254T | Metric | M2.2 | 0.45 | Taper Lead Tap | Right Hand | £7.84 | 1-2 days | |
| T10404T | Metric | M2.5 | 0.45 | Taper Lead Tap | Right Hand | £5.28 | 1-2 days | |
| T10504T | Metric | M3 | 0.35 | Taper Lead Tap | Right Hand | £8.19 | 1-2 days | |
| T10554T | Metric | M3 | 0.5 | Taper Lead Tap | Right Hand | £3.57 | 1-2 days | |
| T10754T | Metric | M3.5 | 0.6 | Taper Lead Tap | Right Hand | £3.85 | 1-2 days | |
| T10794T | Metric | M4 | 0.35 | Taper Lead Tap | Right Hand | £16.87 | 1-2 days | |
| T10804T | Metric | M4 | 0.5 | Taper Lead Tap | Right Hand | £7.38 | 1-2 days | |
| T10854T | Metric | M4 | 0.7 | Taper Lead Tap | Right Hand | £3.28 | 1-2 days | |
| T10954T | Metric | M4.5 | 0.5 | Taper Lead Tap | Right Hand | £8.57 | 1-2 days | |
| T11004T | Metric | M4.5 | 0.75 | Taper Lead Tap | Right Hand | £5.80 | 1-2 days | |
| T11054T | Metric | M5 | 0.5 | Taper Lead Tap | Right Hand | £8.57 | 1-2 days | |
| T11104T | Metric | M5 | 0.75 | Taper Lead Tap | Right Hand | £17.75 | 1-2 days | |
| T11154T | Metric | M5 | 0.8 | Taper Lead Tap | Right Hand | £3.47 | 1-2 days | |
| T11304T | Metric | M6 | 0.5 | Taper Lead Tap | Right Hand | £24.85 | 1-2 days | |
| T11354T | Metric | M6 | 0.75 | Taper Lead Tap | Right Hand | £6.01 | 1-2 days | |
| T11404T | Metric | M6 | 1 | Taper Lead Tap | Right Hand | £3.43 | 1-2 days | |
| T11504T | Metric | M7 | 0.5 | Taper Lead Tap | Right Hand | £9.14 | 1-2 days | |
| T11554T | Metric | M7 | 0.75 | Taper Lead Tap | Right Hand | £9.14 | 1-2 days | |
| T11604T | Metric | M7 | 1 | Taper Lead Tap | Right Hand | £7.02 | 1-2 days | |
| T11654T | Metric | M7 | 1.25 | Taper Lead Tap | Right Hand | £9.14 | 1-2 days | |
| T11754T | Metric | M8 | 0.5 | Taper Lead Tap | Right Hand | £20.86 | 1-2 days | |
| T11804T | Metric | M8 | 0.75 | Taper Lead Tap | Right Hand | £9.66 | 1-2 days | |
| T11854T | Metric | M8 | 1 | Taper Lead Tap | Right Hand | £7.38 | 1-2 days | |
| T11904T | Metric | M8 | 1.25 | Taper Lead Tap | Right Hand | £4.27 | 1-2 days | |
| T12004T | Metric | M9 | 0.5 | Taper Lead Tap | Right Hand | £10.44 | 1-2 days | |
| T12054T | Metric | M9 | 0.75 | Taper Lead Tap | Right Hand | £10.44 | 1-2 days | |
| T12104T | Metric | M9 | 1 | Taper Lead Tap | Right Hand | £10.44 | 1-2 days | |
| T12154T | Metric | M9 | 1.25 | Taper Lead Tap | Right Hand | £8.72 | 1-2 days | |
| T12304T | Metric | M10 | 0.75 | Taper Lead Tap | Right Hand | £9.81 | 1-2 days | |
| T12404T | Metric | M10 | 1 | Taper Lead Tap | Right Hand | £9.66 | 1-2 days | |
| T12454T | Metric | M10 | 1.25 | Taper Lead Tap | Right Hand | £9.66 | 1-2 days | |
| T12504T | Metric | M10 | 1.5 | Taper Lead Tap | Right Hand | £5.13 | 1-2 days | |
| T12654T | Metric | M11 | 1 | Taper Lead Tap | Right Hand | £31.53 | 1-2 days | |
| T12704T | Metric | M11 | 1.25 | Taper Lead Tap | Right Hand | £21.24 | 1-2 days | |
| T12754T | Metric | M11 | 1.5 | Taper Lead Tap | Right Hand | £11.72 | 1-2 days | |
| T12854T | Metric | M12 | 0.5 | Taper Lead Tap | Right Hand | £21.24 | 1-2 days | |
| T12904T | Metric | M12 | 0.75 | Taper Lead Tap | Right Hand | £22.35 | 1-2 days | |
| T12954T | Metric | M12 | 1 | Taper Lead Tap | Right Hand | £21.21 | 1-2 days | |
| T13004T | Metric | M12 | 1.25 | Taper Lead Tap | Right Hand | £11.93 | 1-2 days | |
| T13054T | Metric | M12 | 1.5 | Taper Lead Tap | Right Hand | £11.93 | 1-2 days | |
| T13104T | Metric | M12 | 1.75 | Taper Lead Tap | Right Hand | £7.50 | 1-2 days | |
| T13204T | Metric | M13 | 1 | Taper Lead Tap | Right Hand | £26.13 | 1-2 days | |
| T13304T | Metric | M13 | 1.5 | Taper Lead Tap | Right Hand | £26.13 | 1-2 days | |
| T13354T | Metric | M13 | 1.75 | Taper Lead Tap | Right Hand | £26.13 | 1-2 days | |
| T13454T | Metric | M14 | 0.75 | Taper Lead Tap | Right Hand | £30.16 | 1-2 days | |
| T13504T | Metric | M14 | 1 | Taper Lead Tap | Right Hand | £18.04 | 1-2 days | |
| T13554T | Metric | M14 | 1.25 | Taper Lead Tap | Right Hand | £18.04 | 1-2 days | |
| T13604T | Metric | M14 | 1.5 | Taper Lead Tap | Right Hand | £13.36 | 1-2 days | |
| T13624T | Metric | M14 | 1.75 | Taper Lead Tap | Right Hand | £13.36 | 1-2 days | |
| T13654T | Metric | M14 | 2 | Taper Lead Tap | Right Hand | £9.03 | 1-2 days | |
| T13704T | Metric | M15 | 1 | Taper Lead Tap | Right Hand | £25.60 | 1-2 days | |
| T13754T | Metric | M15 | 1.5 | Taper Lead Tap | Right Hand | £25.60 | 1-2 days | |
| T13804T | Metric | M15 | 1.75 | Taper Lead Tap | Right Hand | £25.60 | 1-2 days | |
| T13904T | Metric | M16 | 1 | Taper Lead Tap | Right Hand | £30.62 | 1-2 days | |
| T13954T | Metric | M16 | 1.25 | Taper Lead Tap | Right Hand | £27.68 | 1-2 days | |
| T14004T | Metric | M16 | 1.5 | Taper Lead Tap | Right Hand | £16.43 | 1-2 days | |
| T14054T | Metric | M16 | 1.75 | Taper Lead Tap | Right Hand | £16.95 | 1-2 days | |
| T14104T | Metric | M16 | 2 | Taper Lead Tap | Right Hand | £10.76 | 1-2 days | |
| T14154T | Metric | M17 | 1 | Taper Lead Tap | Right Hand | £19.03 | 1-2 days | |
| T14304T | Metric | M18 | 1 | Taper Lead Tap | Right Hand | £23.21 | 1-2 days | |
| T14354T | Metric | M18 | 1.25 | Taper Lead Tap | Right Hand | £23.21 | 1-2 days | |
| T14404T | Metric | M18 | 1.5 | Taper Lead Tap | Right Hand | £23.21 | 1-2 days | |
| T14454T | Metric | M18 | 2 | Taper Lead Tap | Right Hand | £38.81 | 1-2 days | |
| T14504T | Metric | M18 | 2.5 | Taper Lead Tap | Right Hand | £16.74 | 1-2 days | |
| T14654T Viewing | Metric | M20 | 1 | Taper Lead Tap | Right Hand | £28.06 | 1-2 days | |
| T14704T | Metric | M20 | 1.25 | Taper Lead Tap | Right Hand | £28.06 | 1-2 days | |
| T14754T | Metric | M20 | 1.5 | Taper Lead Tap | Right Hand | £26.93 | 1-2 days | |
| T14804T | Metric | M20 | 2 | Taper Lead Tap | Right Hand | £45.18 | 1-2 days | |
| T14854T | Metric | M20 | 2.5 | Taper Lead Tap | Right Hand | £18.93 | 1-2 days | |
| T15054T | Metric | M22 | 1 | Taper Lead Tap | Right Hand | £37.45 | 1-2 days | |
| T15104T | Metric | M22 | 1.25 | Taper Lead Tap | Right Hand | £37.45 | 1-2 days | |
| T15154T | Metric | M22 | 1.5 | Taper Lead Tap | Right Hand | £37.45 | 1-2 days | |
| T15254T | Metric | M22 | 2 | Taper Lead Tap | Right Hand | £37.45 | 1-2 days | |
| T15304T | Metric | M22 | 2.5 | Taper Lead Tap | Right Hand | £22.60 | 1-2 days | |
| T15454T | Metric | M24 | 1 | Taper Lead Tap | Right Hand | £52.86 | 1-2 days | |
| T15504T | Metric | M24 | 1.25 | Taper Lead Tap | Right Hand | £52.86 | 1-2 days | |
| T15554T | Metric | M24 | 1.5 | Taper Lead Tap | Right Hand | £52.86 | 1-2 days | |
| T15604T | Metric | M24 | 2 | Taper Lead Tap | Right Hand | £44.90 | 1-2 days | |
| T15654T | Metric | M24 | 3 | Taper Lead Tap | Right Hand | £28.86 | 1-2 days | |
| T15704T | Metric | M25 | 1 | Taper Lead Tap | Right Hand | £45.05 | 1-2 days | |
| T15754T | Metric | M25 | 1.5 | Taper Lead Tap | Right Hand | £45.05 | 1-2 days | |
| T15804T | Metric | M25 | 2 | Taper Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T15854T | Metric | M26 | 1 | Taper Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T15904T | Metric | M26 | 1.5 | Taper Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T16004T | Metric | M27 | 1 | Taper Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T16054T | Metric | M27 | 1.5 | Taper Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T16104T | Metric | M27 | 2 | Taper Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T16154T | Metric | M27 | 3 | Taper Lead Tap | Right Hand | £48.81 | 1-2 days | |
| T16254T | Metric | M28 | 1.5 | Taper Lead Tap | Right Hand | £62.77 | 1-2 days | |
| T16304T | Metric | M28 | 2 | Taper Lead Tap | Right Hand | £62.77 | 1-2 days | |
| T16454T | Metric | M30 | 1 | Taper Lead Tap | Right Hand | £76.97 | 1-2 days | |
| T16504T | Metric | M30 | 1.5 | Taper Lead Tap | Right Hand | £84.49 | 1-2 days | |
| T16554T | Metric | M30 | 2 | Taper Lead Tap | Right Hand | £84.49 | 1-2 days | |
| T16604T | Metric | M30 | 3 | Taper Lead Tap | Right Hand | £84.49 | 1-2 days | |
| T16654T | Metric | M30 | 3.5 | Taper Lead Tap | Right Hand | £47.40 | 1-2 days | |
| T16854T | Metric | M32 | 1.5 | Taper Lead Tap | Right Hand | £97.72 | 1-2 days | |
| T16904T | Metric | M32 | 2 | Taper Lead Tap | Right Hand | £97.72 | 1-2 days | |
| T17004T | Metric | M33 | 1.5 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17054T | Metric | M33 | 2 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17104T | Metric | M33 | 3 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17154T | Metric | M33 | 3.5 | Taper Lead Tap | Right Hand | £83.79 | 1-2 days | |
| T17254T | Metric | M34 | 1.5 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17404T | Metric | M35 | 1.5 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17554T | Metric | M36 | 1.5 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17604T | Metric | M36 | 2 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17654T | Metric | M36 | 3 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17704T | Metric | M36 | 4 | Taper Lead Tap | Right Hand | £70.90 | 1-2 days | |
| T18004T | Metric | M38 | 1.5 | Taper Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T18154T | Metric | M39 | 1.5 | Taper Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18204T | Metric | M39 | 2 | Taper Lead Tap | Right Hand | £105.42 | 1-2 days | |
| T18254T | Metric | M39 | 3 | Taper Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18304T | Metric | M39 | 4 | Taper Lead Tap | Right Hand | £105.42 | 1-2 days | |
| T18404T | Metric | M40 | 1.5 | Taper Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18454T | Metric | M40 | 2 | Taper Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18504T | Metric | M40 | 3 | Taper Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18704T | Metric | M42 | 1.5 | Taper Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18754T | Metric | M42 | 2 | Taper Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18804T | Metric | M42 | 3 | Taper Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18854T | Metric | M42 | 4.5 | Taper Lead Tap | Right Hand | £129.34 | 1-2 days | |
| T19254T | Metric | M45 | 1.5 | Taper Lead Tap | Right Hand | £168.82 | 1-2 days | |
| T19304T | Metric | M45 | 2 | Taper Lead Tap | Right Hand | £168.82 | 1-2 days | |
| T19354T | Metric | M45 | 3 | Taper Lead Tap | Right Hand | £168.82 | 1-2 days | |
| T19404T | Metric | M45 | 4.5 | Taper Lead Tap | Right Hand | £166.74 | 1-2 days | |
| T19554T | Metric | M48 | 1.5 | Taper Lead Tap | Right Hand | £193.31 | 1-2 days | |
| T19604T | Metric | M48 | 2 | Taper Lead Tap | Right Hand | £193.31 | 1-2 days | |
| T19654T | Metric | M48 | 3 | Taper Lead Tap | Right Hand | £193.31 | 1-2 days | |
| T19684T | Metric | M48 | 5 | Taper Lead Tap | Right Hand | £181.82 | 1-2 days | |
| T19734T | Metric | M50 | 1.5 | Taper Lead Tap | Right Hand | £198.20 | 1-2 days | |
| T19744T | Metric | M50 | 2 | Taper Lead Tap | Right Hand | £198.73 | 1-2 days | |
| T19784T | Metric | M52 | 2 | Taper Lead Tap | Right Hand | £211.01 | 1-2 days | |
| T19794T | Metric | M52 | 3 | Taper Lead Tap | Right Hand | £211.56 | 1-2 days | |
| T19804T | Metric | M52 | 5 | Taper Lead Tap | Right Hand | £202.00 | 1-2 days | |
| T19824T | Metric | M56 | 5.5 | Taper Lead Tap | Right Hand | £254.34 | 1-2 days | |
| T19834T | Metric | M60 | 2 | Taper Lead Tap | Right Hand | £320.04 | 1-2 days | |
| T19844T | Metric | M60 | 3 | Taper Lead Tap | Right Hand | £320.04 | 1-2 days | |
| T19854T | Metric | M60 | 5.5 | Taper Lead Tap | Right Hand | £281.91 | 1-2 days | |
| T19894T | Metric | M64 | 4 | Taper Lead Tap | Right Hand | £368.34 | 1-2 days | |
| T19904T | Metric | M64 | 6 | Taper Lead Tap | Right Hand | £368.34 | 1-2 days | |
| T19984T | Metric | M80 | 2 | Taper Lead Tap | Right Hand | £486.83 | 1-2 days |
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