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Wiseman Threading Tools Taper Lead Metric HSS Tap Left Hand - M30x2
| Thread Form | Metric |
| Size | M30 |
| Pitch | 2 |
| Tap Type | Taper Lead Tap |
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Description
Engineered for reliability in demanding metalworking tasks, the Wiseman Threading Tools Taper Lead Metric HSS Tap in a left-hand configuration delivers precise, clean threads when you need reverse-threaded fasteners or components that resist loosening in operation. Ground high-speed steel and an uncoated finish provide robust cutting performance and compatibility with standard cutting fluids, making this tap a versatile choice for general-purpose tapping.

Key features that matter in the workshop
- Left-hand thread design: Ideal for applications where a reverse-thread is required to secure parts or to counteract rotational forces in operation.
- Taper lead geometry: Gradual engagement reduces chatter and minimizes tap breakage during entry, especially in tougher materials or deeper holes.
- Metric sizing M30x2: Exact major diameter and pitch to match ISO 529 standards, ensuring compatibility with standard threaded components and tooling.
- HSS ground and uncoated: A durable, general-purpose choice that partners well with cutting fluids for smooth chip evacuation and extended tool life.
- ISO 529 compliant dimensions: Confidence that the thread you cut meets established international standards for metric threads.
Why it matters for you
Whether you’re rebuilding machinery, fabricating custom components, or performing reverse-thread repairs, this M30x2 left-hand HSS tap gives you predictable results with fewer reworks. The taper lead eases alignment and starting bite, which is especially valuable in blind holes or hard materials where a straight entry can cause chatter or breakage. The uncoated surface means you can tailor lubrication to your process, achieving faster cutting action and cleaner thread surfaces.
Use cases this tap excels at
- Repairing or fabricating left-hand threaded fasteners in steel, cast iron, or certain aluminum applications.
- Creating or restoring reverse threads in tooling, fixtures, or hydraulic components where loosening under load is a concern.
- Prototyping or maintenance work where you need reliable, general-purpose tapping without specialized coatings.
Practical tips for best results
- Use appropriate cutting fluid to reduce friction and heat buildup; dry tapping increases wear and risks breakage.
- Start the tap with a light, steady feed to take advantage of the taper lead’s gradual engagement.
- Maintain steady lubrication and avoid aggressive back-and-forth motions that can dull the thread or cause chatter.
- Tap depth and hole preparation should follow standard ISO guidelines to ensure consistent thread engagement and strength.
Who will benefit most
This Wiseman HSS left-hand taper lead tap is a smart pick for professional machinists, shop technicians, and serious hobbyists who demand dependable performance on reverse-threaded or anti-loosen assemblies. It pairs well with standard drill setups and existing tapping equipment, making it a practical addition to any metric-thread workshop kit.
Designed for reliability, precision, and versatility, the Wiseman Threading Tools Taper Lead Metric HSS Tap – M30x2 is ready to tackle challenging threads with confidence and consistent results.
Part Numbers
- Protool Part Number
- T16555LH4T
- 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 Left Hand
View full collection →You are viewing T16555LH4T. Click any other SKU to view its full details.
| Product SKU | Thread Form | Size | Pitch | Tap Type | Thread Direction | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| T10155LH4T | Metric | M2 | 0.4 | Taper Lead Tap | Left Hand | £18.11 | 1-2 days | |
| T10405LH4T | Metric | M2.5 | 0.45 | Taper Lead Tap | Left Hand | £17.92 | 1-2 days | |
| T10555LH4T | Metric | M3 | 0.5 | Taper Lead Tap | Left Hand | £11.41 | 1-2 days | |
| T10755LH4T | Metric | M3.5 | 0.6 | Taper Lead Tap | Left Hand | £12.65 | 1-2 days | |
| T10855LH4T | Metric | M4 | 0.7 | Taper Lead Tap | Left Hand | £9.66 | 1-2 days | |
| T11005LH4T | Metric | M4.5 | 0.75 | Taper Lead Tap | Left Hand | £19.68 | 1-2 days | |
| T11155LH4T | Metric | M5 | 0.8 | Taper Lead Tap | Left Hand | £9.69 | 1-2 days | |
| T11405LH4T | Metric | M6 | 1 | Taper Lead Tap | Left Hand | £9.69 | 1-2 days | |
| T11605LH4T | Metric | M7 | 1 | Taper Lead Tap | Left Hand | £16.32 | 1-2 days | |
| T11755LH4T | Metric | M8 | 0.5 | Taper Lead Tap | Left Hand | £30.52 | 1-2 days | |
| T11805LH4T | Metric | M8 | 0.75 | Taper Lead Tap | Left Hand | £21.32 | 1-2 days | |
| T11855LH4T | Metric | M8 | 1 | Taper Lead Tap | Left Hand | £21.32 | 1-2 days | |
| T11905LH4T | Metric | M8 | 1.25 | Taper Lead Tap | Left Hand | £11.45 | 1-2 days | |
| T12105LH4T | Metric | M9 | 1 | Taper Lead Tap | Left Hand | £22.47 | 1-2 days | |
| T12155LH4T | Metric | M9 | 1.25 | Taper Lead Tap | Left Hand | £21.38 | 1-2 days | |
| T12305LH4T | Metric | M10 | 0.75 | Taper Lead Tap | Left Hand | £30.87 | 1-2 days | |
| T12405LH4T | Metric | M10 | 1 | Taper Lead Tap | Left Hand | £21.32 | 1-2 days | |
| T12455LH4T | Metric | M10 | 1.25 | Taper Lead Tap | Left Hand | £21.32 | 1-2 days | |
| T12505LH4T | Metric | M10 | 1.5 | Taper Lead Tap | Left Hand | £16.87 | 1-2 days | |
| T12755LH4T | Metric | M11 | 1.5 | Taper Lead Tap | Left Hand | £37.64 | 1-2 days | |
| T12955LH4T | Metric | M12 | 1 | Taper Lead Tap | Left Hand | £31.86 | 1-2 days | |
| T13005LH4T | Metric | M12 | 1.25 | Taper Lead Tap | Left Hand | £31.86 | 1-2 days | |
| T13055LH4T | Metric | M12 | 1.5 | Taper Lead Tap | Left Hand | £29.13 | 1-2 days | |
| T13105LH4T | Metric | M12 | 1.75 | Taper Lead Tap | Left Hand | £23.71 | 1-2 days | |
| T13205LH4T | Metric | M13 | 1 | Taper Lead Tap | Left Hand | £63.84 | 1-2 days | |
| T13505LH4T | Metric | M14 | 1 | Taper Lead Tap | Left Hand | £68.63 | 1-2 days | |
| T13555LH4T | Metric | M14 | 1.25 | Taper Lead Tap | Left Hand | £32.79 | 1-2 days | |
| T13605LH4T | Metric | M14 | 1.5 | Taper Lead Tap | Left Hand | £28.33 | 1-2 days | |
| T13655LH4T | Metric | M14 | 2 | Taper Lead Tap | Left Hand | £28.33 | 1-2 days | |
| T13905LH4T | Metric | M16 | 1 | Taper Lead Tap | Left Hand | £45.83 | 1-2 days | |
| T14005LH4T | Metric | M16 | 1.5 | Taper Lead Tap | Left Hand | £34.76 | 1-2 days | |
| T14105LH4T | Metric | M16 | 2 | Taper Lead Tap | Left Hand | £37.64 | 1-2 days | |
| T14155LH4T | Metric | M17 | 1 | Taper Lead Tap | Left Hand | £56.45 | 1-2 days | |
| T14305LH4T | Metric | M18 | 1 | Taper Lead Tap | Left Hand | £55.07 | 1-2 days | |
| T14405LH4T | Metric | M18 | 1.5 | Taper Lead Tap | Left Hand | £46.60 | 1-2 days | |
| T14455LH4T | Metric | M18 | 2 | Taper Lead Tap | Left Hand | £57.21 | 1-2 days | |
| T14505LH4T | Metric | M18 | 2.5 | Taper Lead Tap | Left Hand | £46.60 | 1-2 days | |
| T14655LH4T | Metric | M20 | 1 | Taper Lead Tap | Left Hand | £63.61 | 1-2 days | |
| T14755LH4T | Metric | M20 | 1.5 | Taper Lead Tap | Left Hand | £53.22 | 1-2 days | |
| T14805LH4T | Metric | M20 | 2 | Taper Lead Tap | Left Hand | £78.48 | 1-2 days | |
| T14855LH4T | Metric | M20 | 2.5 | Taper Lead Tap | Left Hand | £72.52 | 1-2 days | |
| T15055LH4T | Metric | M22 | 1 | Taper Lead Tap | Left Hand | £78.48 | 1-2 days | |
| T15155LH4T | Metric | M22 | 1.5 | Taper Lead Tap | Left Hand | £72.52 | 1-2 days | |
| T15255LH4T | Metric | M22 | 2 | Taper Lead Tap | Left Hand | £78.48 | 1-2 days | |
| T15305LH4T | Metric | M22 | 2.5 | Taper Lead Tap | Left Hand | £61.64 | 1-2 days | |
| T15455LH4T | Metric | M24 | 1 | Taper Lead Tap | Left Hand | £86.27 | 1-2 days | |
| T15555LH4T | Metric | M24 | 1.5 | Taper Lead Tap | Left Hand | £81.88 | 1-2 days | |
| T15605LH4T | Metric | M24 | 2 | Taper Lead Tap | Left Hand | £94.50 | 1-2 days | |
| T15655LH4T | Metric | M24 | 3 | Taper Lead Tap | Left Hand | £80.67 | 1-2 days | |
| T15755LH4T | Metric | M25 | 1.5 | Taper Lead Tap | Left Hand | £67.56 | 1-2 days | |
| T15855LH4T | Metric | M26 | 1 | Taper Lead Tap | Left Hand | £95.68 | 1-2 days | |
| T15905LH4T | Metric | M26 | 1.5 | Taper Lead Tap | Left Hand | £95.68 | 1-2 days | |
| T16055LH4T | Metric | M27 | 1.5 | Taper Lead Tap | Left Hand | £107.21 | 1-2 days | |
| T16155LH4T | Metric | M27 | 3 | Taper Lead Tap | Left Hand | £82.58 | 1-2 days | |
| T16455LH4T | Metric | M30 | 1 | Taper Lead Tap | Left Hand | £132.96 | 1-2 days | |
| T16505LH4T | Metric | M30 | 1.5 | Taper Lead Tap | Left Hand | £141.73 | 1-2 days | |
| T16555LH4T Viewing | Metric | M30 | 2 | Taper Lead Tap | Left Hand | £141.73 | 1-2 days | |
| T16655LH4T | Metric | M30 | 3.5 | Taper Lead Tap | Left Hand | £88.94 | 1-2 days | |
| T16855LH4T | Metric | M32 | 1.5 | Taper Lead Tap | Left Hand | £138.84 | 1-2 days | |
| T17155LH4T | Metric | M33 | 3.5 | Taper Lead Tap | Left Hand | £106.56 | 1-2 days | |
| T17405LH4T | Metric | M35 | 1.5 | Taper Lead Tap | Left Hand | £149.71 | 1-2 days | |
| T17705LH4T | Metric | M36 | 4 | Taper Lead Tap | Left Hand | £105.72 | 1-2 days | |
| T18705LH4T | Metric | M42 | 1.5 | Taper Lead Tap | Left Hand | £206.69 | 1-2 days |
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