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Wiseman Threading Tools Taper Lead Metric HSS Tap Left Hand - M8x1

Wiseman Threading Tools Taper Lead Metric HSS Tap Left Hand - M8x1

SKU:T11855LH4T

Meet the Wiseman Threading Tools Taper Lead Metric HSS Tap Left Hand - M8x1, a purpose-built left‑hand thread cutting tool engineered for dependable performance in metalworking projects. Built to... Read more ↓
Thread FormMetric
SizeM8
Pitch1
Tap TypeTaper Lead Tap
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£21.32
Prices shown ex. VAT
1–2 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

Meet the Wiseman Threading Tools Taper Lead Metric HSS Tap Left Hand - M8x1, a purpose-built left‑hand thread cutting tool engineered for dependable performance in metalworking projects. Built to exacting standards, this tap delivers clean, accurate threads with minimal effort, making it a reliable companion for shops and hobbyists alike.

Why this left‑hand HSS tap stands out

  • Left-hand threading designed for reverse-turn applications—perfect when the assembly requires a thread that tightens as you turn in the opposite direction or when removing damaged threads.
  • M8x1 metric sizing with taper lead for easier starting cuts in harder materials, reducing the risk of cross-threading and guiding the tool into the hole smoothly.
  • High-speed steel (HSS), ground finish for precise tooth geometry and durable cutting edges that resist wear during repeated use.
  • Uncoated for broad material compatibility and predictable cutting performance across common metals, from steel to softer alloys.
  • ISO 529 dimensions ensures compatibility with standard tapping practices and leverages established tolerances for reliable results.

Ideal uses and practical applications

This taper lead HSS tap is well-suited for general-purpose threading tasks where a left-hand M8x1 thread is required. Use it for repair work on components with reverse-thread requirements, maintenance on machinery, or fabricating assemblies that rely on left-handed fasteners. It pairs best with a standard tap wrench and cutting fluid or light oil to optimize chip evacuation and extend tool life.

What to expect in use

  • Starting the thread is smoother thanks to the taper lead, reducing chatter and binding during the initial cuts.
  • Accurate thread form is achieved through precise grinding and ISO-compliant dimensions, helping ensure a proper fit with corresponding nuts or threaded parts.
  • Reliable performance across common metals makes it a versatile choice for both professional shops and DIY projects.

Tips for longevity and best results

  • Always pair the tap with appropriate lubrication and a quality tapping wrench; avoid dry tapping to reduce edge wear.
  • Drill the correct pilot hole per M8x1 specifications before tapping to minimize the chance of cross-threading or broken taps.
  • Clean chips promptly and avoid forcing the tool; use steady, even pressure to maintain thread accuracy.
  • Store in a dry environment to preserve the sharpness of the ground threads for as long as possible.

With its combination of left-hand threading, taper lead, and ISO-standard dimensions, the Wiseman Threading Tools Tap is a precise, durable choice for anyone tackling M8x1 projects where reliable reverse-thread cutting matters. From maintenance tasks to precision fabrication, this tap helps you achieve clean, dependable threads every time.

Part Numbers

Protool Part Number
T11855LH4T
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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Wiseman Threading Tools Taper Lead Metric HSS Taps Left Hand

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You are viewing T11855LH4T. Click any other SKU to view its full details.

Product SKUThread FormSizePitchTap TypeThread DirectionPriceStock Order
T10155LH4T MetricM20.4Taper Lead TapLeft Hand£18.11 1-2 days
T10405LH4T MetricM2.50.45Taper Lead TapLeft Hand£17.92 1-2 days
T10555LH4T MetricM30.5Taper Lead TapLeft Hand£11.41 1-2 days
T10755LH4T MetricM3.50.6Taper Lead TapLeft Hand£12.65 1-2 days
T10855LH4T MetricM40.7Taper Lead TapLeft Hand£9.66 1-2 days
T11005LH4T MetricM4.50.75Taper Lead TapLeft Hand£19.68 1-2 days
T11155LH4T MetricM50.8Taper Lead TapLeft Hand£9.69 1-2 days
T11405LH4T MetricM61Taper Lead TapLeft Hand£9.69 1-2 days
T11605LH4T MetricM71Taper Lead TapLeft Hand£16.32 1-2 days
T11755LH4T MetricM80.5Taper Lead TapLeft Hand£30.52 1-2 days
T11805LH4T MetricM80.75Taper Lead TapLeft Hand£21.32 1-2 days
T11855LH4T ViewingMetricM81Taper Lead TapLeft Hand£21.32 1-2 days
T11905LH4T MetricM81.25Taper Lead TapLeft Hand£11.45 1-2 days
T12105LH4T MetricM91Taper Lead TapLeft Hand£22.47 1-2 days
T12155LH4T MetricM91.25Taper Lead TapLeft Hand£21.38 1-2 days
T12305LH4T MetricM100.75Taper Lead TapLeft Hand£30.87 1-2 days
T12405LH4T MetricM101Taper Lead TapLeft Hand£21.32 1-2 days
T12455LH4T MetricM101.25Taper Lead TapLeft Hand£21.32 1-2 days
T12505LH4T MetricM101.5Taper Lead TapLeft Hand£16.87 1-2 days
T12755LH4T MetricM111.5Taper Lead TapLeft Hand£37.64 1-2 days
T12955LH4T MetricM121Taper Lead TapLeft Hand£31.86 1-2 days
T13005LH4T MetricM121.25Taper Lead TapLeft Hand£31.86 1-2 days
T13055LH4T MetricM121.5Taper Lead TapLeft Hand£29.13 1-2 days
T13105LH4T MetricM121.75Taper Lead TapLeft Hand£23.71 1-2 days
T13205LH4T MetricM131Taper Lead TapLeft Hand£63.84 1-2 days
T13505LH4T MetricM141Taper Lead TapLeft Hand£68.63 1-2 days
T13555LH4T MetricM141.25Taper Lead TapLeft Hand£32.79 1-2 days
T13605LH4T MetricM141.5Taper Lead TapLeft Hand£28.33 1-2 days
T13655LH4T MetricM142Taper Lead TapLeft Hand£28.33 1-2 days
T13905LH4T MetricM161Taper Lead TapLeft Hand£45.83 1-2 days
T14005LH4T MetricM161.5Taper Lead TapLeft Hand£34.76 1-2 days
T14105LH4T MetricM162Taper Lead TapLeft Hand£37.64 1-2 days
T14155LH4T MetricM171Taper Lead TapLeft Hand£56.45 1-2 days
T14305LH4T MetricM181Taper Lead TapLeft Hand£55.07 1-2 days
T14405LH4T MetricM181.5Taper Lead TapLeft Hand£46.60 1-2 days
T14455LH4T MetricM182Taper Lead TapLeft Hand£57.21 1-2 days
T14505LH4T MetricM182.5Taper Lead TapLeft Hand£46.60 1-2 days
T14655LH4T MetricM201Taper Lead TapLeft Hand£63.61 1-2 days
T14755LH4T MetricM201.5Taper Lead TapLeft Hand£53.22 1-2 days
T14805LH4T MetricM202Taper Lead TapLeft Hand£78.48 1-2 days
T14855LH4T MetricM202.5Taper Lead TapLeft Hand£72.52 1-2 days
T15055LH4T MetricM221Taper Lead TapLeft Hand£78.48 1-2 days
T15155LH4T MetricM221.5Taper Lead TapLeft Hand£72.52 1-2 days
T15255LH4T MetricM222Taper Lead TapLeft Hand£78.48 1-2 days
T15305LH4T MetricM222.5Taper Lead TapLeft Hand£61.64 1-2 days
T15455LH4T MetricM241Taper Lead TapLeft Hand£86.27 1-2 days
T15555LH4T MetricM241.5Taper Lead TapLeft Hand£81.88 1-2 days
T15605LH4T MetricM242Taper Lead TapLeft Hand£94.50 1-2 days
T15655LH4T MetricM243Taper Lead TapLeft Hand£80.67 1-2 days
T15755LH4T MetricM251.5Taper Lead TapLeft Hand£67.56 1-2 days
T15855LH4T MetricM261Taper Lead TapLeft Hand£95.68 1-2 days
T15905LH4T MetricM261.5Taper Lead TapLeft Hand£95.68 1-2 days
T16055LH4T MetricM271.5Taper Lead TapLeft Hand£107.21 1-2 days
T16155LH4T MetricM273Taper Lead TapLeft Hand£82.58 1-2 days
T16455LH4T MetricM301Taper Lead TapLeft Hand£132.96 1-2 days
T16505LH4T MetricM301.5Taper Lead TapLeft Hand£141.73 1-2 days
T16555LH4T MetricM302Taper Lead TapLeft Hand£141.73 1-2 days
T16655LH4T MetricM303.5Taper Lead TapLeft Hand£88.94 1-2 days
T16855LH4T MetricM321.5Taper Lead TapLeft Hand£138.84 1-2 days
T17155LH4T MetricM333.5Taper Lead TapLeft Hand£106.56 1-2 days
T17405LH4T MetricM351.5Taper Lead TapLeft Hand£149.71 1-2 days
T17705LH4T MetricM364Taper Lead TapLeft Hand£105.72 1-2 days
T18705LH4T MetricM421.5Taper Lead TapLeft Hand£206.69 1-2 days

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