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Wiseman Threading Tools Bottom Lead Metric HSS Tap Right Hand - M12x0.5
| Thread Form | Metric |
| Size | M12 |
| Pitch | 0.5 |
| Tap Type | Bottom Lead Tap |
| Thread Direction | Right Hand |
Learn more about Klarna

Wiseman Threading Tools Bottom Lead Metric HSS Tap Right Hand – M12x0.5 is a precision, general‑purpose tapping solution crafted for clean, accurate internal threads in a wide range of metals. Made from high‑speed steel and ground to tight tolerances, this tap delivers consistent thread form with minimal chatter, even when used across multiple depths and materials. The uncoated finish helps heat dissipation and chip clearance when paired with proper cutting fluid.
- Right‑hand thread design matches the vast majority of standard holes and fasteners, ensuring straightforward installation and reliable performance.
- Bottom lead (bottoming) design enables threading to the full depth of the hole, producing complete engagement for stronger, more durable threads.
- ISO 529 dimensions guarantee compatibility with standard metric threads and mating components, simplifying part sourcing and replacement.
- HSS ground tool provides robust cutting edges, better precision, and longer life for repetitive tapping tasks in metalworking, fabrication, and repair work.
- Size: M12x0.5 pitch covers common automotive, machinery, and hardware applications where a 12 mm thread with a 0.5 mm pitch is required.
- Uncoated finish is ideal when you’re using cutting fluid or oil, helping chips break and evacuate more efficiently compared with coated alternatives.
- General‑purpose performance makes this tap suitable for steel, cast iron, and many aluminum profiles, offering reliable results across a broad set of project needs.
Use cases and practical advantages:
Whether you’re repairing a damaged threaded insert, assembling a new metal enclosure, or building a bracket with a precise internal thread, this M12x0.5 tap delivers repeatable results. Its bottom‑lead geometry is especially valuable for through‑hole and blind‑hole scenarios where full thread depth is essential for strength and load distribution. The tool’s build quality supports hobbyists, technicians, and professional machinists alike, helping you finish jobs faster with fewer reworks.
Tips for optimal results:
- Secure the workpiece and align the tap straight to prevent cross‑threading.
- Use a suitable cutting fluid or oil to reduce friction, heat, and wear on the tap.
- Apply steady, even pressure; back off periodically to clear chips and reset the cutting edge.
- Follow with the appropriate torque when using a tapping wrench or machine tap, avoiding excessive force that could snap the tap.
- Inspect threads after tapping and clean the hole to ensure a smooth fit for your fasteners.
With ISO 529 compliant dimensions and a robust HSS ground finish, this Wiseman tap is a dependable investing in your metalworking toolkit—providing precise threads, long tool life, and consistent results across a range of common materials.
| Thread Form | Metric |
| Size | M12 |
| Pitch | 0.5 |
| Tap Type | Bottom Lead Tap |
| Thread Direction | Right Hand |
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 Bottom Lead Metric HSS Taps
View full collection →You are viewing T12852P. Click any other SKU to view its full details.
| Product SKU | Thread Form | Size | Pitch | Tap Type | Thread Direction | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| T10032P | Metric | M1.4 | 0.3 | Bottom Lead Tap | Right Hand | £14.62 | 1-2 days | |
| T10052P | Metric | M1.6 | 0.35 | Bottom Lead Tap | Right Hand | £14.62 | 1-2 days | |
| T10152P | Metric | M2 | 0.4 | Bottom Lead Tap | Right Hand | £6.49 | 1-2 days | |
| T10252P | Metric | M2.2 | 0.45 | Bottom Lead Tap | Right Hand | £7.84 | 1-2 days | |
| T10402P | Metric | M2.5 | 0.45 | Bottom Lead Tap | Right Hand | £5.28 | 1-2 days | |
| T10502P | Metric | M3 | 0.35 | Bottom Lead Tap | Right Hand | £8.19 | 1-2 days | |
| T10552P | Metric | M3 | 0.5 | Bottom Lead Tap | Right Hand | £3.57 | 1-2 days | |
| T10752P | Metric | M3.5 | 0.6 | Bottom Lead Tap | Right Hand | £3.85 | 1-2 days | |
| T10792P | Metric | M4 | 0.35 | Bottom Lead Tap | Right Hand | £16.87 | 1-2 days | |
| T10802P | Metric | M4 | 0.5 | Bottom Lead Tap | Right Hand | £7.38 | 1-2 days | |
| T10852P | Metric | M4 | 0.7 | Bottom Lead Tap | Right Hand | £3.28 | 1-2 days | |
| T10952P | Metric | M4.5 | 0.5 | Bottom Lead Tap | Right Hand | £8.57 | 1-2 days | |
| T11002P | Metric | M4.5 | 0.75 | Bottom Lead Tap | Right Hand | £5.80 | 1-2 days | |
| T11052P | Metric | M5 | 0.5 | Bottom Lead Tap | Right Hand | £8.57 | 1-2 days | |
| T11102P | Metric | M5 | 0.75 | Bottom Lead Tap | Right Hand | £17.75 | 1-2 days | |
| T11152P | Metric | M5 | 0.8 | Bottom Lead Tap | Right Hand | £3.47 | 1-2 days | |
| T11302P | Metric | M6 | 0.5 | Bottom Lead Tap | Right Hand | £24.85 | 1-2 days | |
| T11352P | Metric | M6 | 0.75 | Bottom Lead Tap | Right Hand | £6.01 | 1-2 days | |
| T11402P | Metric | M6 | 1 | Bottom Lead Tap | Right Hand | £3.43 | 1-2 days | |
| T11502P | Metric | M7 | 0.5 | Bottom Lead Tap | Right Hand | £9.14 | 1-2 days | |
| T11552P | Metric | M7 | 0.75 | Bottom Lead Tap | Right Hand | £9.14 | 1-2 days | |
| T11602P | Metric | M7 | 1 | Bottom Lead Tap | Right Hand | £7.02 | 1-2 days | |
| T11652P | Metric | M7 | 1.25 | Bottom Lead Tap | Right Hand | £9.14 | 1-2 days | |
| T11752P | Metric | M8 | 0.5 | Bottom Lead Tap | Right Hand | £20.86 | 1-2 days | |
| T11802P | Metric | M8 | 0.75 | Bottom Lead Tap | Right Hand | £9.66 | 1-2 days | |
| T11852P | Metric | M8 | 1 | Bottom Lead Tap | Right Hand | £7.38 | 1-2 days | |
| T11902P | Metric | M8 | 1.25 | Bottom Lead Tap | Right Hand | £4.27 | 1-2 days | |
| T12002P | Metric | M9 | 0.5 | Bottom Lead Tap | Right Hand | £10.44 | 1-2 days | |
| T12052P | Metric | M9 | 0.75 | Bottom Lead Tap | Right Hand | £10.44 | 1-2 days | |
| T12102P | Metric | M9 | 1 | Bottom Lead Tap | Right Hand | £10.44 | 1-2 days | |
| T12152P | Metric | M9 | 1.25 | Bottom Lead Tap | Right Hand | £8.72 | 1-2 days | |
| T12302P | Metric | M10 | 0.75 | Bottom Lead Tap | Right Hand | £9.81 | 1-2 days | |
| T12402P | Metric | M10 | 1 | Bottom Lead Tap | Right Hand | £9.66 | 1-2 days | |
| T12452P | Metric | M10 | 1.25 | Bottom Lead Tap | Right Hand | £9.66 | 1-2 days | |
| T12502P | Metric | M10 | 1.5 | Bottom Lead Tap | Right Hand | £5.13 | 1-2 days | |
| T12652P | Metric | M11 | 1 | Bottom Lead Tap | Right Hand | £31.53 | 1-2 days | |
| T12702P | Metric | M11 | 1.25 | Bottom Lead Tap | Right Hand | £21.24 | 1-2 days | |
| T12752P | Metric | M11 | 1.5 | Bottom Lead Tap | Right Hand | £11.72 | 1-2 days | |
| T12852P Viewing | Metric | M12 | 0.5 | Bottom Lead Tap | Right Hand | £21.24 | 1-2 days | |
| T12902P | Metric | M12 | 0.75 | Bottom Lead Tap | Right Hand | £22.35 | 1-2 days | |
| T12952P | Metric | M12 | 1 | Bottom Lead Tap | Right Hand | £21.21 | 1-2 days | |
| T13002P | Metric | M12 | 1.25 | Bottom Lead Tap | Right Hand | £11.93 | 1-2 days | |
| T13052P | Metric | M12 | 1.5 | Bottom Lead Tap | Right Hand | £11.93 | 1-2 days | |
| T13102P | Metric | M12 | 1.75 | Bottom Lead Tap | Right Hand | £7.50 | 1-2 days | |
| T13202P | Metric | M13 | 1 | Bottom Lead Tap | Right Hand | £26.13 | 1-2 days | |
| T13302P | Metric | M13 | 1.5 | Bottom Lead Tap | Right Hand | £26.13 | 1-2 days | |
| T13352P | Metric | M13 | 1.75 | Bottom Lead Tap | Right Hand | £26.13 | 1-2 days | |
| T13452P | Metric | M14 | 0.75 | Bottom Lead Tap | Right Hand | £30.16 | 1-2 days | |
| T13502P | Metric | M14 | 1 | Bottom Lead Tap | Right Hand | £18.04 | 1-2 days | |
| T13552P | Metric | M14 | 1.25 | Bottom Lead Tap | Right Hand | £18.04 | 1-2 days | |
| T13602P | Metric | M14 | 1.5 | Bottom Lead Tap | Right Hand | £13.36 | 1-2 days | |
| T13622P | Metric | M14 | 1.75 | Bottom Lead Tap | Right Hand | £13.36 | 1-2 days | |
| T13652P | Metric | M14 | 2 | Bottom Lead Tap | Right Hand | £9.03 | 1-2 days | |
| T13702P | Metric | M15 | 1 | Bottom Lead Tap | Right Hand | £25.60 | 1-2 days | |
| T13752P | Metric | M15 | 1.5 | Bottom Lead Tap | Right Hand | £25.60 | 1-2 days | |
| T13802P | Metric | M15 | 1.75 | Bottom Lead Tap | Right Hand | £25.60 | 1-2 days | |
| T13902P | Metric | M16 | 1 | Bottom Lead Tap | Right Hand | £30.62 | 1-2 days | |
| T13952P | Metric | M16 | 1.25 | Bottom Lead Tap | Right Hand | £27.68 | 1-2 days | |
| T14002P | Metric | M16 | 1.5 | Bottom Lead Tap | Right Hand | £16.43 | 1-2 days | |
| T14052P | Metric | M16 | 1.75 | Bottom Lead Tap | Right Hand | £16.95 | 1-2 days | |
| T14102P | Metric | M16 | 2 | Bottom Lead Tap | Right Hand | £10.76 | 1-2 days | |
| T14152P | Metric | M17 | 1 | Bottom Lead Tap | Right Hand | £19.03 | 1-2 days | |
| T14302P | Metric | M18 | 1 | Bottom Lead Tap | Right Hand | £23.21 | 1-2 days | |
| T14352P | Metric | M18 | 1.25 | Bottom Lead Tap | Right Hand | £23.21 | 1-2 days | |
| T14402P | Metric | M18 | 1.5 | Bottom Lead Tap | Right Hand | £23.21 | 1-2 days | |
| T14452P | Metric | M18 | 2 | Bottom Lead Tap | Right Hand | £38.81 | 1-2 days | |
| T14502P | Metric | M18 | 2.5 | Bottom Lead Tap | Right Hand | £16.74 | 1-2 days | |
| T14652P | Metric | M20 | 1 | Bottom Lead Tap | Right Hand | £28.06 | 1-2 days | |
| T14702P | Metric | M20 | 1.25 | Bottom Lead Tap | Right Hand | £28.06 | 1-2 days | |
| T14752P | Metric | M20 | 1.5 | Bottom Lead Tap | Right Hand | £26.93 | 1-2 days | |
| T14802P | Metric | M20 | 2 | Bottom Lead Tap | Right Hand | £45.18 | 1-2 days | |
| T14852P | Metric | M20 | 2.5 | Bottom Lead Tap | Right Hand | £18.93 | 1-2 days | |
| T15052P | Metric | M22 | 1 | Bottom Lead Tap | Right Hand | £37.45 | 1-2 days | |
| T15102P | Metric | M22 | 1.25 | Bottom Lead Tap | Right Hand | £37.45 | 1-2 days | |
| T15152P | Metric | M22 | 1.5 | Bottom Lead Tap | Right Hand | £37.45 | 1-2 days | |
| T15252P | Metric | M22 | 2 | Bottom Lead Tap | Right Hand | £37.45 | 1-2 days | |
| T15302P | Metric | M22 | 2.5 | Bottom Lead Tap | Right Hand | £22.60 | 1-2 days | |
| T15452P | Metric | M24 | 1 | Bottom Lead Tap | Right Hand | £52.86 | 1-2 days | |
| T15502P | Metric | M24 | 1.25 | Bottom Lead Tap | Right Hand | £52.86 | 1-2 days | |
| T15552P | Metric | M24 | 1.5 | Bottom Lead Tap | Right Hand | £52.86 | 1-2 days | |
| T15602P | Metric | M24 | 2 | Bottom Lead Tap | Right Hand | £44.90 | 1-2 days | |
| T15652P | Metric | M24 | 3 | Bottom Lead Tap | Right Hand | £28.86 | 1-2 days | |
| T15702P | Metric | M25 | 1 | Bottom Lead Tap | Right Hand | £45.05 | 1-2 days | |
| T15752P | Metric | M25 | 1.5 | Bottom Lead Tap | Right Hand | £45.05 | 1-2 days | |
| T15802P | Metric | M25 | 2 | Bottom Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T15852P | Metric | M26 | 1 | Bottom Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T15902P | Metric | M26 | 1.5 | Bottom Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T16002P | Metric | M27 | 1 | Bottom Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T16052P | Metric | M27 | 1.5 | Bottom Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T16102P | Metric | M27 | 2 | Bottom Lead Tap | Right Hand | £53.41 | 1-2 days | |
| T16152P | Metric | M27 | 3 | Bottom Lead Tap | Right Hand | £48.81 | 1-2 days | |
| T16252P | Metric | M28 | 1.5 | Bottom Lead Tap | Right Hand | £62.77 | 1-2 days | |
| T16302P | Metric | M28 | 2 | Bottom Lead Tap | Right Hand | £62.77 | 1-2 days | |
| T16452P | Metric | M30 | 1 | Bottom Lead Tap | Right Hand | £76.97 | 1-2 days | |
| T16502P | Metric | M30 | 1.5 | Bottom Lead Tap | Right Hand | £84.49 | 1-2 days | |
| T16552P | Metric | M30 | 2 | Bottom Lead Tap | Right Hand | £84.49 | 1-2 days | |
| T16602P | Metric | M30 | 3 | Bottom Lead Tap | Right Hand | £84.49 | 1-2 days | |
| T16652P | Metric | M30 | 3.5 | Bottom Lead Tap | Right Hand | £47.40 | 1-2 days | |
| T16852P | Metric | M32 | 1.5 | Bottom Lead Tap | Right Hand | £97.72 | 1-2 days | |
| T16902P | Metric | M32 | 2 | Bottom Lead Tap | Right Hand | £97.72 | 1-2 days | |
| T17002P | Metric | M33 | 1.5 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17052P | Metric | M33 | 2 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17102P | Metric | M33 | 3 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17152P | Metric | M33 | 3.5 | Bottom Lead Tap | Right Hand | £83.79 | 1-2 days | |
| T17252P | Metric | M34 | 1.5 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17402P | Metric | M35 | 1.5 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17552P | Metric | M36 | 1.5 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17602P | Metric | M36 | 2 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17652P | Metric | M36 | 3 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T17702P | Metric | M36 | 4 | Bottom Lead Tap | Right Hand | £70.90 | 1-2 days | |
| T18002P | Metric | M38 | 1.5 | Bottom Lead Tap | Right Hand | £110.99 | 1-2 days | |
| T18152P | Metric | M39 | 1.5 | Bottom Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18202P | Metric | M39 | 2 | Bottom Lead Tap | Right Hand | £105.42 | 1-2 days | |
| T18252P | Metric | M39 | 3 | Bottom Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18302P | Metric | M39 | 4 | Bottom Lead Tap | Right Hand | £105.42 | 1-2 days | |
| T18402P | Metric | M40 | 1.5 | Bottom Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18452P | Metric | M40 | 2 | Bottom Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18502P | Metric | M40 | 3 | Bottom Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18702P | Metric | M42 | 1.5 | Bottom Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18752P | Metric | M42 | 2 | Bottom Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18802P | Metric | M42 | 3 | Bottom Lead Tap | Right Hand | £138.67 | 1-2 days | |
| T18852P | Metric | M42 | 4.5 | Bottom Lead Tap | Right Hand | £129.34 | 1-2 days | |
| T19252P | Metric | M45 | 1.5 | Bottom Lead Tap | Right Hand | £168.82 | 1-2 days | |
| T19302P | Metric | M45 | 2 | Bottom Lead Tap | Right Hand | £168.82 | 1-2 days | |
| T19352P | Metric | M45 | 3 | Bottom Lead Tap | Right Hand | £168.82 | 1-2 days | |
| T19402P | Metric | M45 | 4.5 | Bottom Lead Tap | Right Hand | £166.74 | 1-2 days | |
| T19552P | Metric | M48 | 1.5 | Bottom Lead Tap | Right Hand | £193.31 | 1-2 days | |
| T19602P | Metric | M48 | 2 | Bottom Lead Tap | Right Hand | £193.31 | 1-2 days | |
| T19652P | Metric | M48 | 3 | Bottom Lead Tap | Right Hand | £193.31 | 1-2 days | |
| T19682P | Metric | M48 | 5 | Bottom Lead Tap | Right Hand | £181.82 | 1-2 days | |
| T19732P | Metric | M50 | 1.5 | Bottom Lead Tap | Right Hand | £198.20 | 1-2 days | |
| T19742P | Metric | M50 | 2 | Bottom Lead Tap | Right Hand | £198.73 | 1-2 days | |
| T19782P | Metric | M52 | 2 | Bottom Lead Tap | Right Hand | £211.01 | 1-2 days | |
| T19792P | Metric | M52 | 3 | Bottom Lead Tap | Right Hand | £211.56 | 1-2 days | |
| T19802P | Metric | M52 | 5 | Bottom Lead Tap | Right Hand | £202.00 | 1-2 days | |
| T19822P | Metric | M56 | 5.5 | Bottom Lead Tap | Right Hand | £254.34 | 1-2 days | |
| T19832P | Metric | M60 | 2 | Bottom Lead Tap | Right Hand | £320.04 | 1-2 days | |
| T19842P | Metric | M60 | 3 | Bottom Lead Tap | Right Hand | £320.04 | 1-2 days | |
| T19852P | Metric | M60 | 5.5 | Bottom Lead Tap | Right Hand | £281.91 | 1-2 days | |
| T19892P | Metric | M64 | 4 | Bottom Lead Tap | Right Hand | £368.34 | 1-2 days | |
| T19902P | Metric | M64 | 6 | Bottom Lead Tap | Right Hand | £368.34 | 1-2 days | |
| T19982P | Metric | M80 | 2 | Bottom Lead Tap | Right Hand | £486.83 | 1-2 days | |
| T10559MP | Metric | M3 | 0.5 | Bottom Lead Tap | Right Hand | £22.47 | 1-2 days | |
| T10859MP | Metric | M4 | 0.7 | Bottom Lead Tap | Right Hand | £21.93 | 1-2 days | |
| T11159MP | Metric | M5 | 0.8 | Bottom Lead Tap | Right Hand | £21.93 | 1-2 days | |
| T11409MP | Metric | M6 | 1.0 | Bottom Lead Tap | Right Hand | £21.93 | 1-2 days | |
| T11909MP | Metric | M8 | 1.25 | Bottom Lead Tap | Right Hand | £24.70 | 1-2 days | |
| T12509MP | Metric | M10 | 1.5 | Bottom Lead Tap | Right Hand | £30.98 | 1-2 days | |
| T13109MP | Metric | M12 | 1.75 | Bottom Lead Tap | Right Hand | £41.56 | 1-2 days | |
| T13659MP | Metric | M14 | 2.0 | Bottom Lead Tap | Right Hand | £52.97 | 1-2 days | |
| T14109MP | Metric | M16 | 2.0 | Bottom Lead Tap | Right Hand | £65.94 | 1-2 days | |
| T14509MP | Metric | M18 | 2.5 | Bottom Lead Tap | Right Hand | £89.63 | 1-2 days | |
| T14859MP | Metric | M20 | 2.5 | Bottom Lead Tap | Right Hand | £107.48 | 1-2 days | |
| T15659MP | Metric | M24 | 3.0 | Bottom Lead Tap | Right Hand | £124.28 | 1-2 days |
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