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Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Neutral - 08UIR/L12UNBXC

08UIR/L12UNBXC - Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Neutral

SKU:08UIR/L12UNBXC

The Carmex Thread Turning Internal Insert is part of our industry-leading range of thread turning inserts. These high-quality, laydown triangular inserts provide a versatile solution for UNC, UNF... Read more ↓
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M
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Thread TypeInternal
Thread DirectionNeutral
Thread FormUN (UNC UNF UNEF UNS)
Pitch12
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£13.35
per item · pack of 10
Prices shown ex. VAT
5 days estimated lead time — subject to availability
Sold in packs of 10
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Thread Turning Internal Insert is part of our industry-leading range of thread turning inserts. These high-quality, laydown triangular inserts provide a versatile solution for UNC, UNF, UNEF, and UNS internal threads, supporting the majority of thread standards used today.

Built to handle a wide range of applications—from basic to demanding—this insert enables quick changeovers, consistent results, and reliable performance on a variety of machines and projects.

  • UN thread compatibility across major standards: Covers UNC, UNF, UNEF, and UNS to minimize tool changes and simplify part programming.
  • Triangular laydown geometry for stability: The laydown design delivers rigid cutting action, reduces chatter, and promotes clean, accurate internal threads.
  • Durable, reliable construction: Precision-made inserts with consistent edge geometry deliver long tool life and repeatable results even in challenging materials.

This internal thread turning insert helps you complete projects with confidence, delivering fast setup, consistent thread quality, and fewer reworks. Its versatile UN standards compatibility fits a wide range of parts, while its stable cutting geometry reduces cycle times and downtime. Whether you’re an engineer optimizing production, a buyer standardizing tooling, or a hobbyist performing repairs, you’ll appreciate reliable performance and long service life from this Carmex insert.

Part Numbers

Protool Part Number
08UIR/L12UNBXC
Brand
Carmex
Category
Thread Turning
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.

Complete Your Project

Tooling and consumables that work with this product.
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