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Wiseman Threading Tools Bottom Lead Metric HSS Tap Left Hand - M24x1
| Thread Form | Metric |
| Size | M24 |
| Pitch | 1 |
| Tap Type | Bottom Lead Tap |
| Thread Direction | Left Hand |
Learn more about Klarna
Wiseman Threading Tools Bottom Lead Metric HSS Tap Left Hand - M24x1 is a precision internal-threading solution built for accuracy, durability, and reliable performance in metalworking projects. This high-speed steel ground tap is uncoated, offering predictable cutting action and straightforward lubrication compatibility for a wide range of materials.
Designed to cut left-hand threads, this tap is ideal for applications that require reverse-threaded fasteners or components where an anti-rotation fit is part of the design. The M24x1 size and ISO 529 compliant dimensions ensure compatibility with standard metric tapped holes, giving you confidence in threading accuracy and interchangeability with other ISO-compliant tools.
The bottom lead geometry enhances engagement and starting stability, helping you begin the cut cleanly in deeper or harder-to-start holes. This makes it particularly effective for tougher metals and for jobs where consistent thread quality is essential from the first turn to the full depth.
Key features at a glance:
- Material: high-speed steel (HSS) for hardness and wear resistance
- Coating: uncoated, offering predictable heat management and clean chip flow with standard threading lubricants
- Thread type: left-hand, internal thread
- Size: metric M24x1
- Lead: bottom lead design for easier starting and smoother cutting in challenging holes
- Compliance: ISO 529 dimensions for guaranteed compatibility with standard taps
Who it's for: machinists, metalworkers, repair technicians, and dedicated hobbyists who need dependable left-hand threading capability in a compact, single-tool solution. Use it for repairing or creating left-handed threads in steel, cast iron, and non-ferrous metals, as well as certain plastics when lubrication is appropriate.
Practical tips for best results: pair this tap with a suitable tap wrench, work with steady feeds, and use a quality threading lubricant to reduce tool wear. Start with a light touch to establish alignment, then progressively advance to the full depth while maintaining an even, clockwise motion when cutting left-hand threads. Always back off periodically to clear chips and prevent binding, especially in deeper holes.

| Thread Form | Metric |
| Size | M24 |
| Pitch | 1 |
| Tap Type | Bottom Lead Tap |
| Thread Direction | Left 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 Left Hand
View full collection →You are viewing T15455LH2P. Click any other SKU to view its full details.
| Product SKU | Thread Form | Size | Pitch | Tap Type | Thread Direction | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| T10155LH2P | Metric | M2 | 0.4 | Bottom Lead Tap | Left Hand | £18.11 | 1-2 days | |
| T10405LH2P | Metric | M2.5 | 0.45 | Bottom Lead Tap | Left Hand | £17.92 | 1-2 days | |
| T10555LH2P | Metric | M3 | 0.5 | Bottom Lead Tap | Left Hand | £11.41 | 1-2 days | |
| T10755LH2P | Metric | M3.5 | 0.6 | Bottom Lead Tap | Left Hand | £12.65 | 1-2 days | |
| T10855LH2P | Metric | M4 | 0.7 | Bottom Lead Tap | Left Hand | £9.66 | 1-2 days | |
| T11005LH2P | Metric | M4.5 | 0.75 | Bottom Lead Tap | Left Hand | £19.68 | 1-2 days | |
| T11155LH2P | Metric | M5 | 0.8 | Bottom Lead Tap | Left Hand | £9.69 | 1-2 days | |
| T11405LH2P | Metric | M6 | 1 | Bottom Lead Tap | Left Hand | £9.69 | 1-2 days | |
| T11605LH2P | Metric | M7 | 1 | Bottom Lead Tap | Left Hand | £16.32 | 1-2 days | |
| T11755LH2P | Metric | M8 | 0.5 | Bottom Lead Tap | Left Hand | £30.52 | 1-2 days | |
| T11805LH2P | Metric | M8 | 0.75 | Bottom Lead Tap | Left Hand | £21.32 | 1-2 days | |
| T11855LH2P | Metric | M8 | 1 | Bottom Lead Tap | Left Hand | £21.32 | 1-2 days | |
| T11905LH2P | Metric | M8 | 1.25 | Bottom Lead Tap | Left Hand | £11.45 | 1-2 days | |
| T12105LH2P | Metric | M9 | 1 | Bottom Lead Tap | Left Hand | £22.47 | 1-2 days | |
| T12155LH2P | Metric | M9 | 1.25 | Bottom Lead Tap | Left Hand | £21.38 | 1-2 days | |
| T12305LH2P | Metric | M10 | 0.75 | Bottom Lead Tap | Left Hand | £30.87 | 1-2 days | |
| T12405LH2P | Metric | M10 | 1 | Bottom Lead Tap | Left Hand | £21.32 | 1-2 days | |
| T12455LH2P | Metric | M10 | 1.25 | Bottom Lead Tap | Left Hand | £21.32 | 1-2 days | |
| T12505LH2P | Metric | M10 | 1.5 | Bottom Lead Tap | Left Hand | £16.87 | 1-2 days | |
| T12755LH2P | Metric | M11 | 1.5 | Bottom Lead Tap | Left Hand | £37.64 | 1-2 days | |
| T12955LH2P | Metric | M12 | 1 | Bottom Lead Tap | Left Hand | £31.86 | 1-2 days | |
| T13005LH2P | Metric | M12 | 1.25 | Bottom Lead Tap | Left Hand | £31.86 | 1-2 days | |
| T13055LH2P | Metric | M12 | 1.5 | Bottom Lead Tap | Left Hand | £29.13 | 1-2 days | |
| T13105LH2P | Metric | M12 | 1.75 | Bottom Lead Tap | Left Hand | £23.71 | 1-2 days | |
| T13205LH2P | Metric | M13 | 1 | Bottom Lead Tap | Left Hand | £63.84 | 1-2 days | |
| T13505LH2P | Metric | M14 | 1 | Bottom Lead Tap | Left Hand | £68.63 | 1-2 days | |
| T13555LH2P | Metric | M14 | 1.25 | Bottom Lead Tap | Left Hand | £32.79 | 1-2 days | |
| T13605LH2P | Metric | M14 | 1.5 | Bottom Lead Tap | Left Hand | £28.33 | 1-2 days | |
| T13655LH2P | Metric | M14 | 2 | Bottom Lead Tap | Left Hand | £28.33 | 1-2 days | |
| T13905LH2P | Metric | M16 | 1 | Bottom Lead Tap | Left Hand | £45.83 | 1-2 days | |
| T14005LH2P | Metric | M16 | 1.5 | Bottom Lead Tap | Left Hand | £34.76 | 1-2 days | |
| T14105LH2P | Metric | M16 | 2 | Bottom Lead Tap | Left Hand | £37.64 | 1-2 days | |
| T14155LH2P | Metric | M17 | 1 | Bottom Lead Tap | Left Hand | £56.45 | 1-2 days | |
| T14305LH2P | Metric | M18 | 1 | Bottom Lead Tap | Left Hand | £55.07 | 1-2 days | |
| T14405LH2P | Metric | M18 | 1.5 | Bottom Lead Tap | Left Hand | £46.60 | 1-2 days | |
| T14455LH2P | Metric | M18 | 2 | Bottom Lead Tap | Left Hand | £57.21 | 1-2 days | |
| T14505LH2P | Metric | M18 | 2.5 | Bottom Lead Tap | Left Hand | £46.60 | 1-2 days | |
| T14655LH2P | Metric | M20 | 1 | Bottom Lead Tap | Left Hand | £63.61 | 1-2 days | |
| T14755LH2P | Metric | M20 | 1.5 | Bottom Lead Tap | Left Hand | £53.22 | 1-2 days | |
| T14805LH2P | Metric | M20 | 2 | Bottom Lead Tap | Left Hand | £78.48 | 1-2 days | |
| T14855LH2P | Metric | M20 | 2.5 | Bottom Lead Tap | Left Hand | £72.52 | 1-2 days | |
| T15055LH2P | Metric | M22 | 1 | Bottom Lead Tap | Left Hand | £78.48 | 1-2 days | |
| T15155LH2P | Metric | M22 | 1.5 | Bottom Lead Tap | Left Hand | £72.52 | 1-2 days | |
| T15255LH2P | Metric | M22 | 2 | Bottom Lead Tap | Left Hand | £78.48 | 1-2 days | |
| T15305LH2P | Metric | M22 | 2.5 | Bottom Lead Tap | Left Hand | £61.64 | 1-2 days | |
| T15455LH2P Viewing | Metric | M24 | 1 | Bottom Lead Tap | Left Hand | £86.27 | 1-2 days | |
| T15555LH2P | Metric | M24 | 1.5 | Bottom Lead Tap | Left Hand | £81.88 | 1-2 days | |
| T15605LH2P | Metric | M24 | 2 | Bottom Lead Tap | Left Hand | £94.50 | 1-2 days | |
| T15655LH2P | Metric | M24 | 3 | Bottom Lead Tap | Left Hand | £80.67 | 1-2 days | |
| T15755LH2P | Metric | M25 | 1.5 | Bottom Lead Tap | Left Hand | £67.56 | 1-2 days | |
| T15855LH2P | Metric | M26 | 1 | Bottom Lead Tap | Left Hand | £95.68 | 1-2 days | |
| T15905LH2P | Metric | M26 | 1.5 | Bottom Lead Tap | Left Hand | £95.68 | 1-2 days | |
| T16055LH2P | Metric | M27 | 1.5 | Bottom Lead Tap | Left Hand | £107.21 | 1-2 days | |
| T16155LH2P | Metric | M27 | 3 | Bottom Lead Tap | Left Hand | £82.58 | 1-2 days | |
| T16455LH2P | Metric | M30 | 1 | Bottom Lead Tap | Left Hand | £132.96 | 1-2 days | |
| T16505LH2P | Metric | M30 | 1.5 | Bottom Lead Tap | Left Hand | £141.73 | 1-2 days | |
| T16555LH2P | Metric | M30 | 2 | Bottom Lead Tap | Left Hand | £141.73 | 1-2 days | |
| T16655LH2P | Metric | M30 | 3.5 | Bottom Lead Tap | Left Hand | £88.94 | 1-2 days | |
| T16855LH2P | Metric | M32 | 1.5 | Bottom Lead Tap | Left Hand | £138.84 | 1-2 days | |
| T17155LH2P | Metric | M33 | 3.5 | Bottom Lead Tap | Left Hand | £106.56 | 1-2 days | |
| T17405LH2P | Metric | M35 | 1.5 | Bottom Lead Tap | Left Hand | £149.71 | 1-2 days | |
| T17555LH2P | Metric | M36 | 1.5 | Bottom Lead Tap | Left Hand | £149.71 | 1-2 days | |
| T17705LH2P | Metric | M36 | 4 | Bottom Lead Tap | Left Hand | £105.72 | 1-2 days | |
| T18705LH2P | Metric | M42 | 1.5 | Bottom Lead Tap | Left Hand | £206.69 | 1-2 days |
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