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Carmex Thread Mills Solid Carbide - External - UN (UNC UNF UNEF UNS) - 12mm x 12 - MT7

SKU:EMT1212D2012UNMT7

The Carmex External Thread Mills are precision tools designed for fast, repeatable external thread milling in UNC, UNF, UNEF, and UNS standards. Built for manufacturers and machinists who demand c... Read more ↓
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M
K
N
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Thread FormUN (UNC UNF UNEF UNS)
Size12mm
Pitch12
Diameter (D)12
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£245.38
Prices shown ex. VAT
5 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

The Carmex External Thread Mills are precision tools designed for fast, repeatable external thread milling in UNC, UNF, UNEF, and UNS standards. Built for manufacturers and machinists who demand consistent thread quality and efficient cycle times, this solid carbide tool delivers reliable performance in a compact 12 mm package with MT7 compatibility.

  • External thread milling tool: Solid carbide cutter optimized for external threads per UNC/UNF/UNEF/UNS standards, with geometry designed for clean, accurate thread profiles.
  • Size and shank: Ø12 mm diameter, 12 mm length of cut, MT7 shank for standard milling machines.
  • Material: Solid carbide construction for rigidity, wear resistance, and long tool life in tough materials.
  • Flute design: Spiral flutes with 3–5 flutes to enhance cutting action, chip evacuation, and surface finish.
  • Finish and efficiency: The spiral and multi-flute configuration yields an exceptional surface finish on threads and reduces machining time.
  • Industrial versatility: Suitable for a wide range of applications including automotive, hydraulic, and general precision threading tasks.

By using this Carmex thread mill, you gain predictable thread quality, improved surface integrity, and faster production cycles. The carbide construction stands up to repeated use across metal alloys, while the MT7 shank simplifies tool changes on compatible CNC mills. Whether you're producing fluid fittings, fasteners, or shafts, this external thread mill helps you achieve accurate threads with minimal chatter and consistent depth control, improving part acceptance rates and overall productivity.

Part Numbers

Protool Part Number
EMT1212D2012UNMT7
Brand
Carmex
Category
Thread Mill
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: Carmex Solid Carbide Thread Mills - UN (UNC/UNF/UNEF) - For External Thread (MT)

View full collection →

You are viewing EMT1212D2012UNMT7. Click any other SKU to view its full details.

Product SKUSizePitchFlute LengthReachShank DiameterOverall LengthPriceStock Order
EMT1010D1624UNMT7 10mm2416.416.41073£196.16 5 days
EMT1212D2012UNMT7 Viewing12mm1220.120.11284£245.38 5 days
EMT1212D2014UNMT7 12mm1420.920.91284£245.38 5 days
EMT1212D2018UNMT7 12mm1820.520.51284£245.38 5 days
EMT1212D2116UNMT7 12mm1621.421.41284£245.38 5 days
EMT1212E2120UNMT7 12mm2021211284£245.38 5 days

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