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Carmex Thread Mills Carbide Mini Type - G (55 Degree) BSF BSP - G1/2, G7/8 x 14 - MT7

SKU:MTS1212D3714WMT7

Meet the Carmex Thread Mills Carbide Mini Type MT7 – a compact, high‑performance thread milling tool engineered for machinists who require precise G and BSP thread forms in deep holes and across ... Read more ↓
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M
K
N
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Thread FormG (55 Degree) BSF BSP
SizeG1/2 G7/8
Pitch14
Diameter (D)12
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£208.58
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

Meet the Carmex Thread Mills Carbide Mini Type MT7 – a compact, high‑performance thread milling tool engineered for machinists who require precise G and BSP thread forms in deep holes and across a broad range of materials. Designed for internal and external threads with a single cutter, it delivers fast, reliable threading at medium to high cutting speeds.

  • Thread form and sizes: 55° G threads (BSF/BSP) with G1/2 and G7/8×14 sizing, optimized for versatile applications in hard metals and precision assemblies.
  • Carbide grade and coating: MT7 sub‑micron carbide with a Titanium Aluminium Nitride multi‑layer coating (ISO K10–K20) for outstanding wear resistance and extended tool life.
  • Through‑coolant design: Coolant through the flutes enhances chip evacuation and cooling in deep‑hole threading, reducing heat buildup and extending tool life.
  • Flute geometry: Spiral flutes (3–5) deliver smooth cutting action, efficient chip removal, and reduced cutting forces thanks to the short profile.
  • Depth and versatility: Enables machining in deep holes and can produce a wide range of threads and pitches using the same tool, including both external and internal threads.
  • Material capability: General‑purpose performance suitable for all materials, including hardened workpieces up to 45 HRc, with reliable results at higher speeds.
  • Durability and efficiency: Multi‑layer coating and short tool profile provide longer life and shorter machining times, helping you finish jobs faster with fewer tool changes.
  • Practical reliability: Designed to minimize breakage and maintain consistent thread quality across challenging productions and repetitive runs.

This MT7 carbide mini thread mill is a thoughtful choice for engineers and production shops aiming for precise, repeatable threads in hard materials and tight spaces. Its combination of through‑coolant capability, versatile threading options, and durable coating translates to fewer tool changes, cleaner thread finishes, and improved uptime on high‑speed threading tasks.

Part Numbers

Protool Part Number
MTS1212D3714WMT7
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 Carbide Thread Mills - G55° BSW,BSP Mini Type (MTS)

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You are viewing MTS1212D3714WMT7. Click any other SKU to view its full details.

Product SKUSizePitchFlute LengthReachShank DiameterOverall LengthPriceStock Order
MTS08078C1928WMT7 G1/8282.7219.5864£130.12 5 days
MTS1010D3019WMT7 G1/4 G3/8194.01301073£168.41 In Stock
MTS1212D3714WMT7 ViewingG1/2 G7/8145.44371284£208.58 5 days
MTS1616D4411WMT7 N/A116.934416105£260.62 In Stock

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